Boris Johnson and Jeremy Corbyn are facing off in a televised head-to-head debate on the BBC.
It is the last live TV debate before the December 12 election, and the last scheduled meeting between the two party leaders.
Mr Corbyn will be desperate to gain on the Conservatives, particularly after a poll yesterday showed their lead drop below 10 points.
It comes after the Labour leader unveiled a new set of leaked documents which he claims paint a "damning" picture of Mr Johnson's Brexit deal, particularly on the Northern Ireland issue.
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