We have to make the arguments for free markets, for open economies, and we have to recognise in doing that, that for some people as I said on the steps of Downing Street back when I first became Prime Minister, they do feel that things haven't been working for everyone in the way that they should.
Philip Hammond's prediction that Mr Johnson would never be prime minister, he said, could be "the only Treasury forecast in some time to have a distinct ring of truth".
Duddridge's letter is the latest sign of rebellion against May, who has faced constant attacks from hard-Brexiteer MPs - including Johnson and Jacob Rees-Mogg - over her plans for leaving the EU.
"It was a great speech, he was optimistic, he talked about Conservative values, and he talked about the opportunities if we do Brexit properly", Richard Tice, co-chairman of campaign group Leave means Leave, said after Johnson's speech.
Britain is not afraid to leave European Union with no deal.
Ross Thomson, however, is a member of the hard-Brexit backing European Research Group, and is a loyal follower of Mr Johnson, being pictured yesterday physically shielding the former London Mayor from journalists.More news: Lindsay Lohan "Rescue" Attempt Of Refugee Children Backfires In Bizarre Instagram Video
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Will not let country down on Brexit. May who recently said the naughtiest thing she'd ever done as a child was run through a wheat field against the wishes of a farmer.
But her bid to revitalize her domestic agenda and steal the initiative from the main opposition Labour Party has been overshadowed by the party splits over Brexit.
Reports have stated that she now has a 'tickly cough' so it may be a disturbed speech as she tries to hold back the splutters. May, just change her Brexit plan.
The Tory gathering is becoming a grudge match between the former foreign secretary and the Chancellor, who launched a savage assault on Mr Johnson in a series of interviews.
If you follow the Conservative Party on YouTube or Facebook, it'll be available live there, too.
Ms. May has held back on criticizing Mr. Johnson, but on Tuesday, she said his speech had made her "cross". "That's because we believe in the union of the United Kingdom", she told the BBC.
Johnson, who said that the Northern Ireland backstop should be scrapped, received thunderous applause when he said: "Chuck Chequers".
Prime Minister Theresa May has accused Boris Johnson of wanting to "tear up" guarantees that would uphold Northern Ireland's position in the United Kingdom. "Our [Brexit plan] does that, it's the only plan on the table at the moment that does".