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Another MP has resigned over the Brexit deal in the latest blow to the government since Theresa May unveiled her plan.

Will Quince, Tory MP for Colchester, has quit as ministerial aide to Defence Secretary Gavin Williamson, a Government source revealed tonight.

The politician told The Sunday Telegraph: "I wanted to support this Withdrawal Agreement, and I still want to support it, but unless the backstop is addressed to include either an end date or a unilateral exit mechanism, I cannot support it and so am resigning from the Government as a Parliamentary Private Secretary.

"I implore the Prime Minister to go back to the European Union and find another way, to make this Withdrawal Agreement something we can all support."

Dad-to-two Quince, who grew up in Berkshire, was first elected at the 2015 general election as MP for Colchester.

But the 35-year-old is the latest in a string of politicians, including high-profile MPs, to quit since Mrs May unveiled her plan.

Sam Gyimah, the universities minister, dubbed the Brexit plan "naive" in November when he quit.

The Prime Minister shared her draft Withdrawal Agreement last month.

She held a tense emergency meeting with her closest cabinet ministers this week to plot a last ditch attempt to get the beleaguered Brexit deal through parliament.

But some of the Prime Minister’s key allies were left frustrated that she failed to listen to their concerns over the scale of the crashing defeat on the cards.