When Andrea Jenkyns received a call from Brandon Lewis, the chairman of the Conservative Party, she knew it was unlikely to be good news.

The 44-year-old Tory MP has rapidly emerged as one of the most vociferous opponents of the Prime Minister's Brexit plans and was one of the first Tory MPs to publicly call for Theresa May to go.

The Telegraph has learned that on Saturday last week Mr Lewis called Ms Jenkyns and allegedly "hinted" that funding for leaflets in her marginal, Brexit-backing seat of Morley and Outwood in Yorkshire could be cut.

In an interview Ms Jenkyns confirmed that she had been contacted by a "senior figure" at the Conservative Party as the party attempted to retain discipline over Mrs May's Chequers compromise.