Jeremy Corbyn has not said how he would vote in a fresh referendum on the terms of Brexit after promising that Labour would settle the UK’s future in the EU within six months of taking office.
The Labour leader also put pressure on other party leaders to publish their tax returns, saying anyone who wanted to serve as Prime Minister or Chancellor of the Exchequer should do so.
Ahead of the launch of his party’s campaign, Mr Corbyn tweeted: “Boris Johnson has spent months promising we'd leave the EU today. The failure to do so is his and his alone.
“Labour will get Brexit sorted by giving the people the final say within six months with the choice of a credible leave deal or remain. And we'll carry out what you decide.”
But asked directly how he would vote in a new EU referendum, Mr Corbyn did not respond. He also declined to say whether he would resign if Labour lose the election, and said it would not be "appropriate" to confirm if the shadow cabinet would be appointed to their corresponding roles in government in the event of a Labour victory.
The Labour leader was asked whether his counterparts in other parties should follow his lead and publish their tax returns.
Mr Corbyn replied: “There are two people who should publish their tax returns, in my opinion, and that is the Chancellor of the Exchequer and the Prime Minister.
“I'm not sure they do, but John McDonald and I do publish our tax returns in full.”
He added: “In fact, the first time my tax return was published, they realised after they had managed to read my handwriting, that actually I've been over-generous and given the Inland Revenue £300 more than I should have done. But that’s OK - I don’t want it back, it’s fine.”
Amid claims by the Conservatives that Labour were poised to do a “shady backroom deal” with the SNP to grant a second Scottish independence referendum, Mr Corbyn suggested he would work more closely with other parties as Prime Minister.
“I last had a discussion with Nicola Sturgeon about ten days ago, and I do keep in touch with political leaders around the country, because that is what leading the party is all about,” he said.
“You know what? When we go into government, it's going to be so much different, and so much better, because we'll have a different world and a different society, and it doesn't try and divide people, but instead tries to bring them together.”