British author J. K. Rowling, writer of Harry Potter and other Wizarding World works, has garnered attention for her support of the Labour Party under Gordon Brown and her criticism of the party under Jeremy Corbyn and Keir Starmer, as well as her opposition to the American Republican Party under Donald Trump. She opposed Scottish independence in a 2014 referendum and Brexit during the 2016 referendum to leave the European Union.

Since late 2019, Rowling has publicly voiced her opinions on transgender activism and related issues. Rowling has used language and expressed her views towards transgender people in a manner which has frequently been referred to as transphobic by LGBT rights organizations and some feminists, even as she has received support from other feminists.

Rowling has stated that her politics are left-leaning, liberal and fiercely anti-authoritarian, pointing to her literary works to demonstrate this. She states that she is not an ideologue, distrusting ideologies, but is an idealist, believing in the human capacity for collaboration and mutual support. She holds that her political home is the pragmatic centre-left, where that is focused on dealing with economic disparity, championing social liberalism and equal rights. Whilst maintaining that she remains left of centre in her politics, she believes the left-right divide has been disrupted, believing a form of identity politics to be fundamentally illiberal.

Rowling's Harry Potter books, while ostensibly fantasy, engage with real-world political issues and ideologies, reflecting Rowling's own views. She explained, "I wanted Harry to leave our world and find exactly the same problems in the wizarding world.” The works explore a wide range of real world political issues which include:

• Authoritarianism and Fascism: A central theme of the books being condemnation of authoritarianism and fascist policies, embodied by Lord Voldemort and his Death Eaters. The books depict the dangers of pure-blood supremacy, discrimination, and the suppression of dissent, drawing parallels with historical and contemporary examples of totalitarian regimes.
• Liberal democracy: Her books champion democratic values such as equality, tolerance, free speech, and the rule of law. The struggle against Voldemort is presented as a fight to preserve these values against those who seek to destroy them. The importance of institutions and fair processes is also highlighted, though not without acknowledging their flaws.
• Social Inequality and Prejudice: Rowling’s books address issues of social inequality and prejudice, particularly through the treatment of house-elves, werewolves, and other marginalised groups. The series critiques prejudice based on blood status and species.
• The Importance of Resistance and Activism: The characters in the series, particularly Harry and his friends, demonstrate the power of individual and collective action in challenging oppressive forces.
• The books examine the basis of power, the control of information and the role of the media.
• Themes of justice, discipline and punishment are also explored.

Some of the themes in the books are presented more ambiguously. For example, the Ministry of Magic is both bumbling, inefficient and corrupt, but also inhabited by key players, and with a layer of necessary legitimacy. This reflects a more nuanced understanding of real world power structures.

J. K. Rowling has been a long-time friend of Gordon Brown (Prime Minister of the United Kingdom from 2007 to 2010) and his wife Sarah Brown. In September 2008, Rowling donated £1 million to the Labour Party and commended Brown's commitment to improving the lives of poor families. Rowling praised Brown in a 2009 Time magazine essay, saying she "still wanted him in charge". Rowling was critical of Jeremy Corbyn's leadership of the Labour Party. In June 2024, Rowling wrote that she would struggle to support the Labour Party under the leadership of Keir Starmer due to its stance on gender-related issues.

As a resident of Edinburgh, Rowling was eligible to vote in the 2014 referendum on Scottish independence, and intended to vote "No". She donated £1 million (US$1,694,000) to the Better Together anti-independence campaign, led by her former neighbour and friend Alistair Darling, and used the "Death Eaters" characters from her Harry Potter series—who reject wizards unless they have pure blood—as a reference in her explanation of her donation: "when people try to make this debate about the purity of your lineage, things start getting a little Death Eaterish for my taste". In Rowling's post-donation blog post in mid-June 2014, she explained that she is "friendly" with members of both campaigns and stated a belief that "there are intelligent, thoughtful people on both sides of this question".

In 2018, Rowling tweeted that she was tired of "blood and soil ethno-nationalists marching with" civic campaigners. She also stated that Scottish nationalism "contains traces of bigotry".

Rowling opposed Brexit and campaigned for the United Kingdom to remain in the European Union, in the run up to the 2016 referendum to leave the European Union, stating on her website that "I'm the mongrel product of this European continent and I'm an internationalist. I was raised by a Francophile mother whose family was proud of their part-French heritage .... My values are not contained or proscribed by borders. The absence of a visa when I cross the channel has symbolic value to me. I might not be in my house, but I'm still in my hometown."

Rowling expressed concern that "racists and bigots" were directing parts of the Leave campaign. In a blog post, she added: "How can a retreat into selfish and insecure individualism be the right response when Europe faces genuine threats, when the bonds that tie us are so powerful, when we have come so far together? How can we hope to conquer the enormous challenges of terrorism and climate change without cooperation and collaboration?"

Rowling told a Spanish newspaper in February 2008 that the politics of the United States had negatively impacted not only the US, but the UK as well; she stated that "it is a pity that Clinton and Obama have to be rivals because both are extraordinary."

Rowling advised the 2008 graduating class of Harvard, "the great majority of you belong to the world's only remaining superpower. The way you vote, the way you live, the way you protest, the pressure you bring to bear on your government, has an impact way beyond your borders. That is your privilege, and your burden."

Rowling made analogies between Donald Trump and Voldemort after the Republican presidential candidate called for a ban on Muslims entering the United States on 7 December 2015.

On 7 October 2016, Rowling released on Pottermore four pieces of writing exclusively as an introduction to the film Fantastic Beasts and Where to Find Them, titled History of Magic in North America. It included her fictionalised ideas of "Native American Magic." Her use of Native American religious figures and symbolism from contemporary, living cultures for this work of fiction was met with protests by Native American communities; she was accused of racial insensitivity, violation of intellectual property rights, disrespect and appropriating "Native traditions while erasing Native peoples." While usually friendly and actively engaged with her fanbase on social media, after answering one question about her interpretation of skinwalkers that resulted in "thousands of tweets directed at her about these concerns", The Washington Post wrote that "Native people took to Twitter to voice their disappointment and demand a response from Rowling, who has not answered her detractors online." "She has not addressed it at all", wrote Adrienne Keene. "The silence is noted, and it's deafening."

In 2015, Rowling expressed support for refugees.

In response to the Russian invasion of Ukraine in 2022, Rowling has publicly expressed support for Ukraine, pledging to match funding for aid to children trapped in orphanages in Ukraine. She also publicly expressed opposition to Russian president Vladimir Putin.

In a speech made on 25 March 2022, Putin alleged that Russian culture was being "cancelled" in Western countries, and compared Russia to Rowling "[falling] out of favour with fans of so-called gender freedoms" in reference to her statements on transgender people. Rowling rejected Putin's comparison, saying criticism of cancel culture is "possibly not best made" by people that kill civilians or imprison their critics.

On 22 October 2015, a letter was published in The Guardian signed by Rowling (along with over 150 other figures from arts and politics) opposing the cultural boycott of Israel, and announcing the creation of a network for dialogue, called Culture for Coexistence. Rowling later explained her position in more detail, saying that although she opposed most of Benjamin Netanyahu's actions she did not think the cultural boycott would bring about the removal of Israel's leader or help improve the situation in Israel and Palestine.

Rowling wrote about what it meant to be British saying, "It means a welfare state of which we should be fiercely proud and a tradition of tolerance and free speech we should defend to our last collective breath."

Rowling—long known to be litigious—has a long record of taking or threatening legal action against those who say things about her she dislikes, including journalists. In 2016, she threatened to sue an MP elected for the SNP for criticising her interactions with a troll known for posting misogynistic abuse of Rowling's opponents. Her opponents, such as India Willoughby, have said that Rowling's wealth and tendency to threaten suits has resulted in a situation where "no one will publish anything negative about her".

In July 2020, Rowling signed an open letter published in Harper's Magazine titled "A Letter on Justice and Open Debate", with 150 other public figures, largely writers and academics. The letter states in part, "The free exchange of information and ideas, the lifeblood of a liberal society, is daily becoming more constricted", criticises "a vogue for public shaming and ostracism" and "a blinding moral certainty", warns of fear spreading in the arts and media, and denounces President Donald Trump as "a real threat to democracy".

Objections to the letter included accusations that Rowling and the other signatories had powerful means to publish their opinions, and that it was disingenuous to attempt to silence others who might offer criticism of their views. Some thought that Rowling was trying to specifically suppress criticism about her statements concerning transgender topics. After learning who also signed the letter, Jennifer Finney Boylan expressed regret over her support, and stated she would not have signed had she known who the other signatories were. Several of the signers defended their letter, describing it as a stand against what they called the "forces of illiberalism".

Rowling's responses to proposed changes to Scottish gender recognition laws and her views on sex and gender have provoked controversy. She has been critical of self-declared gender identity. Her statements have divided feminists, fuelled debates on freedom of speech and cancel culture, and prompted support for transgender people from the arts sector. Her statements have been deemed transphobic by critics and she has been referred to as a TERF (trans-exclusionary radical feminist) in response to comments she made on Twitter. She rejects these characterisations. As her views on transgender issues came under scrutiny, Rowling stated that she has received death threats.

Rowling's views on trans individuals were first noted in 2018 when she "liked" a tweet that described trans women as "men in dresses". This garnered criticism from her fans who accused her of being transphobic. Her spokesperson told PinkNews that Rowling had "favorited" the tweet by mistake. In December 2019, Rowling tweeted support for Maya Forstater, who lost her job with the Center for Global Development due to gender-critical views, and is the subject of Forstater v Centre for Global Development Europe. In 2020, Rowling spoke out against a Devex article for using the phrase "people who menstruate" instead of "women". She stated that denying the reality of biological sex erases the experiences of women worldwide and eliminates the possibility of same-sex attraction. Responding to criticism, she stated her view that "sex is real and has lived consequences", while additionally writing: "I respect every trans person’s right to live any way that feels authentic and comfortable to them."

Rowling published an essay on her personal website in 2020 in which she expressed a number of concerns about what she called the "new trans activism". Many of the claims in the essay, such as that the number of detransitioners indicates that young people are being pressured into gender transition, were based on anecdotal evidence. Rowling characterizes arguments that femaleness does not reside in the sexed body, and assertions that biological women do not have common experiences, as being misogynistic. She finds language calling females "menstruators" to be dehumanising, and she believes that the trans activist movement seeks to erode women as a political class as well as a biological one. She also explained that the attempt to redefine the legal definition of sex in terms of gender would put safe spaces for women at risk. She said she was concerned that girls were transitioning in order to escape sexism, and that she was a survivor of domestic abuse and sexual assault, and stated that "When you throw open the doors of bathrooms and changing rooms to any man who believes or feels he's a woman...then you open the door to any and all men who wish to come inside". She also stated in her essay: "I believe the majority of trans-identified people not only pose zero threat to others, but are vulnerable ... trans people need and deserve protection ... I feel nothing but empathy and solidarity with trans women who've been abused by men."

Rowling stated that she "never set out to upset anyone" but was "not uncomfortable with getting off my pedestal." Neither is she concerned, she explained, about how her opposition to trans rights will affect her legacy. She claims the term cisgender is "ideological language signifying belief in the unfalsifiable concept of gender identity."

In March 2022, Rowling criticised Labour party leader Keir Starmer who said "trans women are women" in his personal opinion and according to British law. She accused him of misrepresenting the law and said "the Labour Party can no longer be counted on to defend women's rights". and later that year she voiced opposition to the Scottish Gender Recognition Reform Bill, aimed at allowing transgender people to change their legal gender more easily, calling then-First Minister Nicola Sturgeon a "destroyer of women's rights" over the bill.

Rowling established a sexual assault crisis centre, Beira's Place in December 2022, exclusively for cisgender female victims of sexual violence. The Guardian quoted rape crisis specialists as saying it "would provide much-needed extra provision, because existing services were being overwhelmed by new cases" and noted that "under the Equality Act, services that exclude trans women are lawful if they are proportionate and legitimate". In response to a fan praising this decision, Rowling tweeted "Merry Terfmas".

In February 2024, Rowling donated £70,000 to a crowd-funding appeal by For Women Scotland in support of one of their legal cases. The case in question is challenging the definition of "woman" within the Gender Representation on Public Boards (Scotland) Act 2018 being inclusive of transgender women with gender recognition certificates. The appeal was started after the UK Supreme Court decided to grant the case a judicial review. The case is one of many through which For Women Scotland are seeking to overturn the inclusion of trans women with gender recognition certificates in the legal definition of "woman" in some laws in Scotland.

On 1 April 2024, in response to the Hate Crime and Public Order (Scotland) Act 2021 going into effect, Rowling posted a Twitter thread in which she listed and misgendered several transgender women. The women included several public figures as well as convicted sexual offenders. Clarissa-Jan Lim, a reporter for MSNBC, said Rowling grouping them together was "an apparent attempt to draw a connection between trans people and sexual perversion". Throughout the thread, Rowling sarcastically referred to all the people as female, but at the end clarified, "Obviously, the people mentioned in the above tweets aren't women at all, but men, every last one of them." Rowling said that, if her comments were illegal under the new law, she "looked forward to being arrested". Later, a spokesperson for Police Scotland said that Rowling's statements were "not assessed to be criminal and no further action will be taken." The Prime Minister, Rishi Sunak, defended Rowling, saying "people should not be criminalised for stating simple facts on biology".

Several actors known for portraying Rowling's characters in the Wizarding World criticised her views directly, or spoke out in support of trans rights, including Daniel Radcliffe, Emma Watson, Rupert Grint, and Eddie Redmayne. In April 2024, following the publication of the Cass Review, Rowling said she would not accept apologies from Radcliffe or Watson for their support of transgender people were they to be given.

Other actors in the franchise have come to Rowling's defence. Helena Bonham Carter and Ralph Fiennes spoke out in support of Rowling. Actress Noma Dumezweni initially expressed support for Rowling but rescinded this following backlash. Evanna Lynch initially criticised Rowling's views but later condemned the intense backlash against her. Other performers and activists have supported Rowling and condemned comments against her, including Ayaan Hirsi Ali, Julie Bindel, Dave Chappelle, Robbie Coltrane, Dana International, Eddie Izzard, Kathleen Stock, Alison Moyet, Ian McEwan, and Frances Barber.

The June 2020 essay was nominated by the BBC's Amol Rajan for the Russell prize for best writing. The broadcaster said it appreciated Rowling's "bravery" for writing the blog despite the reaction it caused, and the nomination did not mean the BBC supported Rowling's argument. Among those who disputed the claims in Rowling's essay were Stonewall; Mermaids, a charity for gender non-conforming children, which criticised Rowling for what it saw as Rowling conflating "trans women with male sexual predators"; and CEO of GLAAD Sarah Kate Ellis, who said it could create a dangerous environment for the trans community. Feminist gender theorist Judith Butler considered Rowling's claims to be "a rich fantasy" that did not describe social reality. Women's rights groups in the United States had said in 2016 that 200 municipalities which allowed transgender people to use women's shelters reported no rise in violence.

Warner Bros. Entertainment and Universal Studios Parks & Resorts released statements in June 2020, emphasising their prioritisation of LGBTQ+ inclusion and diversity, but did not directly mention Rowling or her comments. Rowling received support from actors Robbie Coltrane and Brian Cox, and some feminists such as Ayaan Hirsi Ali. The radical feminist Julie Bindel said that Rowling "has inspired generations of young women and men to look into issues of sex-based discrimination".

In June 2020, the Equality Act was blocked in the U.S. Senate. Republican senator James Lankford cited Rowling's essay as part of his reasoning for opposing the bill. Four authors resigned in protest from the Blair Partnership, Rowling's literary agency, after the company refused to issue a public statement of support for trans rights, saying that "freedom of speech can only be upheld if the structural inequalities that hinder equal opportunities for underrepresented groups are challenged and changed."

In July 2020, following the threat of legal action, British children's newssite The Day publicly apologised to Rowling after publishing an article that suggested her comments caused harm to and attacked transgender people, made comparisons between Rowling's views and those of Wagner on race and Picasso on women, and called for her work to be boycotted. The publication agreed to pay an undisclosed sum to a charity of Rowling's choice. Rowling returned her Robert F. Kennedy Human Rights Ripple of Hope Award in August 2020, after RFKHR president Kerry Kennedy called her statements "deeply troubling", "transphobic" and degrading towards transgender people. Rowling stated that she was "deeply saddened" to be returning the award, reiterating her admiration for Robert Kennedy, but said that no award "means so much to me that I would forfeit the right to follow the dictates of my own conscience."

While expressing empathy towards trans individuals, her comments were labelled as "cruel" and "anti-trans" by media advocacy group GLAAD. The fansites MuggleNet and The Leaky Cauldron have expressed criticism towards Rowling.

A Rowling novel Troubled Blood was published in 2020, receiving criticism for its portrayal of a murderous man who dresses as a woman when killing. A spokesperson for the charity Mermaids condemned the novel for "tired tropes" that demonise transgender people by presenting them as a threat. A review in The Guardian stated the character was "just one of many suspects" and he is not "portrayed as trans or even called a 'transvestite' by Rowling."

In September 2020, a letter in support of Rowling, signed by 58 entertainers and authors, including Ian McEwan, actress Frances Barber, playwright Tom Stoppard and actor Griff Rhys Jones, was published in The Sunday Times. The letter condemned the "onslaught of abuse" directed at Rowling on social media, describing such behaviour as an "insidious, authoritarian and misogynistic trend". Actor Eddie Redmayne similarly condemned the abuse targeted at Rowling, whilst also condemning the abuse towards transgender people. Genderfluid comedian and actor Eddie Izzard stated that she does not consider Rowling transphobic and encouraged people to read Rowling's work about the topic. In an interview with New Statesman, philosopher and gender theorist Judith Butler agreed that Rowling should not be subject to abuse, but urged people to oppose any form of abuse against transgender people.

In a 2021 essay for New Statesman, former British prime minister Tony Blair expressed his belief that Labour could not win if it "looked askance" at Rowling's views on transgender people, calling for open debate on the issue. In his 2021 Netflix stand-up comedy special The Closer, comedian Dave Chappelle expressed support for Rowling, declaring himself "Team TERF". Several US quidditch leagues decided to change the name of the sport to "distance themselves from the works of JK Rowling" because of her comments.

In December 2023 the online New Zealand publication The Spinoff reported that the Auckland War Memorial Museum had cancelled plans to host a Fantastic Beasts exhibit due to several staff members expressing concerns to the management about Rowling's views on transgender people.

In 2006, Rowling criticised skinny models, describing that their "only function in the world appears to be supporting the trade in overpriced handbags and rat-sized dogs". She condemned societal beauty standards in "this skinny-obsessed world" and magazine covers that feature people who are "either seriously ill or suffering from an eating disorder".

Rowling was criticised both for her comments on underweight people—hoping her daughters would not become "empty-headed, self-obsessed, emaciated clones"—and for the portrayal of overweight people in Harry Potter; Rowling responded that Harry Potter characters who are "on the plumper side" include "several of my most important, admirable and lovable characters".

In 2017, Rowling expressed her opposition to the Mexico City Policy, which blocked US government support for international organisation that provided abortion counseling, when the policy was reinstated by Donald Trump, and said that she supported abortion rights, especially in underdeveloped countries. In 2022, she said she thinks all women should have the rights to "safe, legal abortion should they wish to terminate a pregnancy" in a statement on X.

Rowling's employment at Amnesty International made her realise that "imagination is what allows us to empathise with people who have suffered horribly and to act on their behalf." The danger of inaction, Rowling said, comes from people who "prefer not to exercise their imaginations at all."

Rowling was recognised in 2007 with the Canadian Order of the Forest after demanding that her books be printed on "eco-friendly" papers.

In 2008, Rowling blocked the Finnish publication of her latest Harry Potter novel on paper from Finland because it lacked the ecologically friendly certification she favours.

Rowling joined others in opposing age banding of children's books, signing a 2008 petition stating that the proposal to impose age-guidance ranges is "ill-conceived, damaging to the interests of young readers and highly unlikely to make the slightest difference to sales".

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