Berger was critical of Jeremy Corbyn, who was elected Labour leader in 2015, and resigned from the Shadow Cabinet in 2016.[6] She criticised what she considered to be increasing antisemitism in the Labour Party and said that, under Corbyn, Labour contained "institutional anti-Semitism". In 2019, members of her local party briefly proposed motions of no confidence in her for "continually" criticising Corbyn. She later joined other former Labour and Conservative MPs in forming Change UK, but left this group in June 2019 to sit as an Independent MP,[7][8] before joining the Liberal Democrats in September 2019.[9]
Antisemitic abuse
In January 2013, a Merseyside music promoter, Philip Hayes was convicted of a racially aggravated public order offence and fined £120 after making a series of antisemitic remarks about Jews to Berger at the Liverpool Music Awards. He later apologised and said he had been drunk and was acting out of character.[70][71]
In October 2014, Garron Helm, a member of the neo-Nazi National Action youth group, was imprisoned for four weeks after he sent an antisemitic tweet to Berger in August 2014. He served two weeks before being released.[72][73][74]
Following the conviction, it was reported that similar messages to her were being posted on Twitter.[75] According to Berger in December 2014, "[a]t the height of the abuse, the police said I was the subject of 2,500 hate messages in the space of three days" using the same hashtag.[76] She has had to take security measures where she lives in Liverpool and London, and has accused Twitter of insufficient action to counter the problem. In her view, the site "could start by proactively banning racist words which aren't allowed to be printed in newspapers or broadcast on TV that could never be used in a positive way".[76]
During the 2015 general election, right-wing UK Independence Party parliamentary candidate for West Lancashire Jack Sen was suspended from the party after sending an allegedly antisemitic tweet to Berger.[77]
Joshua Bonehill-Paine, a supporter of Helm and a self-described far-right antisemite, was convicted of racially-aggravated harassment of Berger in December 2016. He was sentenced to two years.[78][79]
In February 2017, John Nimmo was sentenced to 27 months in prison after pleading guilty to nine charges, including sending Berger death threats and antisemitic messages signed "your friend the Nazi".[80]
After Berger asked Jeremy Corbyn's office in March 2018 why in 2012 he had queried the removal by a local council of an allegedly antisemitic mural by Mear One, she received further online abuse which she stated came from left-wing individuals.[81][82]
In July 2018, Jack Coulson, a teenager obsessed with Neo-Nazism and who allegedly had told an acquaintance that he was going to kill Berger, was jailed for eight and a half months for possessing a document for terrorist purposes. He had a past conviction for making a pipe bomb.[83]