Farage to Johnson: back no-deal or else

Brexit Party leader Nigel Farage has offered Prime Minister Boris Johnson the possibility of an electoral non-aggression pact if he goes for a no-deal EU exit, but warned that any Brexit fudge would provoke opposition across the UK.

"We would put country before party and we would do it every time," Farage said of the scenario in which Johnson goes for a no-deal Brexit but faced an election.

"We would be prepared in those circumstances to help him, to work with him, perhaps, I don't know, in the form of a non-aggression pact at the election," he said on Tuesday.

Farage said a "a clean break Brexit" on October 31 was the most popular option among voters but he questioned whether Johnson could be trusted on Brexit.

The EU Withdrawal Agreement, Farage said, was the worst deal in history even without the Irish border backstop.

Farage said he suspected Johnson would try to get an amended Withdrawal Agreement passed by the British parliament.

"There is a better than 50 per cent chance that we'll face a general election in the autumn," Farage said.