"I can't really believe it's come to this, but I think I need to tell people that Jeremy Corbyn isn't fit to lead the Labour Party," Ian Austin, who had been an adviser to former Prime Minister Gordon Brown, said in an emotional interview broadcast on Sky News. "He's certainly not fit to lead the country."
Austin, who left the party earlier this year, accused Corbyn of having sided with Britain's enemies, whether it be the Irish Republican Army in Northern Ireland or Hamas and Hezbollah in the Middle East. The adopted son of a Czech-Jewish father who fled the Nazis, Austin said Corbyn had allowed a culture of extremism and anti-Semitism to fester in the Labour Party.
He was joined by another former Labour lawmaker, John Woodcock, who also said he would vote for Johnson.
Their rebellion coincided with a front-page article in an influential London-based Jewish newspaper, the Jewish Chronicle, which urged non-Jews to vote against the Labour Party because of what the editors said was Corbyn's long record of espousing and tolerating anti-Semitic views.
"There were some who hoped that he might change as leader," the paper said. "The opposite has happened. The near total inaction of Mr. Corbyn and the rest of the Labour leadership in dealing with anti-Semites in the party has both emboldened them and encouraged others."
Corbyn, a strong critic of Israel, has long denied being an anti-Semite. He said the Labour Party had investigated the allegations and suspended or expelled members found guilty of anti-Jewish statements. He did not address the latest charges, which dominated news coverage on a day when he had hoped to sharpen Labour's attack on Johnson's Conservatives for their policy of a swift exit from the European Union.
Watson's resignation revealed other tensions in the party, which have deepened since Corbyn became leader in 2015. As deputy leader, he had been the most senior of Corbyn's critics to survive with a leadership role in the party and had used that position to promote a conspicuously different agenda.
An outspoken opponent of Brexit, Watson pressed first to embrace the policy of holding a second referendum and then, unsuccessfully, sought to make Labour commit to remaining in the European Union.
Corbyn, a lifelong Euroskeptic, resisted that, insisting that Labour should stick to a policy of negotiating a new Brexit deal, then putting that to a referendum with the alternative option of remaining in the bloc.
Watson was also vocal in his criticism of the party's failure to deal with allegations of anti-Semitism. He expressed alarm when another Labour lawmaker, Luciana Berger, quit, saying she had been driven out of the party. It was, he said, the "worst day of shame" in the party's history.
After Berger and a handful of other lawmakers left the party this year to protest Corbyn's leadership, Watson formed a new caucus for social democrats and urged the centrists to stay and fight.
However, he now becomes the latest moderate lawmaker to quit Parliament, among them Owen Smith, who challenged Corbyn for the leadership in 2016 — an exodus that is noticeable in the Conservative Party as well and that analysts say is radicalising both of them.
For Corbyn's most ardent supporters, Watson had become a reviled figure. On the eve of the Labour Party's annual conference in September, allies of Corbyn tried unsuccessfully to abolish his job. He also came under fire for raising accusations that prominent British establishment figures had sexually abused boys — claims made by a man whose evidence subsequently proved to be false.
In his resignation letter, Watson promised to continue to fight for Labour. Unlike Austin and Woodcock, he said he would support the party's candidates in the general election.
Written by: Mark Landler and Stephen Castle
© 2019 THE NEW YORK TIMES