JEREMY Corbyn is "simply not up to the job" of being prime minister and a Labour government would result in economic chaos, Theresa May has said.

The Prime Minister shot back at the Labour leader after he accused her of "pandering" to US President Donald Trump as he set out plans for a major shift in British foreign policy.

Mrs May said the leaked draft of Labour's General Election manifesto was a "multibillion-pound ideological wish list of deliverable promises" with a funding shortfall estimated to be "at least £30 billion".

Taking her campaign into Labour territory in north-east England, Mrs May said the "chaotic" plans would involve "billions of pounds of tax rises".

She said: "He says he wants to change Britain - and that's true. But what we have learned in this campaign is that he wants to change it into the 1970s.

"In just three weeks Labour have taken us back 40 years - or maybe 400 years according to Diane Abbott."

In a series of barbed comments aimed at the shadow home secretary - who struggled in a radio interview over the cost of her policy on police recruitment - Mrs May said: "Labour cannot add up.

"And so far in this campaign they have retreated into ideological fantasy. They have shown during this campaign that they cannot be trusted."