HUNDREDS of grassroots Labour activists turned out in Boris Johnson’s constituency today, getting ready to turf him out at the next election.

Labour frontbenchers Richard Burgon and Diane Abbott joined canvassers from constituency Labour parties and Momentum groups outside the Uxbridge Civic Centre to shore up support for Ali Milani to take the seat from the likely Tory leader.

Momentum said: “Hundreds out for our unseat Boris mass canvas today. We halved his majority at the last election, next time Uxbridge will go red.”

Mr Johnson, who is expected to be named the new Tory prime minister tomorrow, has a majority of 5,000.

The only prime minister yet to lose their own seat was the Conservatives’ Arthur Balfour, after he was voted out of Manchester East in 1906.

Mr Johnson’s rival is 24-year-old Uxbridge local Mr Milani, a Muslim Iranian who immigrated to Britain. The Momentum-backed candidate describes himself as the “antithesis” to Mr Johnson who he accuses of “neglecting” constituents to concentrate on his own career.

Labour activist and Unite member Josh Jackson said there was a “great response” to Mr Milani on the doorstep.

“No love for Boris Johnson who is a terrible MP and does nothing for his constituents,” said Mr Jackson. “He is in for a rude awakening when these people vote for a working-class socialist in Ali.”

Labour shadow justice secretary Mr Burgon told the rally that there is a need for a working-class socialist MP who “represents the constituency and a socialist Labour government under the leadership of Jeremy Corbyn.”

Meanwhile, Chancellor Philip Hammond announced yesterday that he will resign this week if Mr Johnson becomes prime minister due to the prospect of a no-deal Brexit.

He denied having already moved out of Downing Street, which a photojournalist tweeting under the name of @politicalpics branded “staggering,” after he snapped the Chancellor packing three cars outside Downing Street with at least eight large bags of his belongings.

Asked on the BBC One’s Andrew Marr show if he thought he would be sacked by the new prime minister, Mr Hammond said: “No, I’m sure I’m not going to be sacked because I’m going to resign before we get to that point.”

Mr Hammond, who oversaw the £1.5bn spending on no-deal preparations, said that accepting a no-deal Brexit “is not something that I could ever sign up to.”