(Bloomberg) — Prime Minister Boris Johnson and Labour Party leader Jeremy Corbyn go head-to-head in the final scheduled leadership debate ahead of the Dec. 12 general election. The Conservatives still enjoy a healthy lead in opinion polls but will be wary of any gaffe or misstep that could undermine Johnson’s bid for a parliamentary majority in the last days of campaigning.Ahead of the debate, the premier accused Corbyn of trying to “fiddle” the result of the second Brexit referendum he wants by allowing European Union nationals to vote. But Johnson is himself facing a backlash over his decision not to give an interview to the BBC’s Andrew Neil, who delivered a prime-time condemnation of the prime minister, calling it “a question of trust.”Must Read: Britain’s Brexit Election Is Now a Referendum on Jeremy CorbynFor more on the election visit ELEC.Key Developments:Corbyn gives speech in central London at 9.30 a.m. Johnson-Corbyn BBC debate in Southampton at 8.30 p.m. Sky News announces result of YouGov’s snap poll on the winner at 9:30 p.m.BBC interviewer Andrew Neil attacked Johnson for refusing to be interviewed by him, accusing him of avoiding scrutinyBetting odds show a 71% chance of a Conservative majority, according to LadbrokesThe Tory lead is now below 10 points, according to the BritainElects poll trackerGove Defends Johnson Swerving Neil Interview (9 a.m.)Cabinet Office Minister Michael Gove denied that Boris Johnson is avoiding accountability by being the only major party leader not to do a televised interview with BBC journalist Andrew Neil. “The prime minister has done more than 100 interviews during the campaign so far,” Gove told BBC Radio. “It’s an unprecedented amount of scrutiny that the PM has allowed to happen.”Neil himself challenged Johnson to agree to an interview at the end of his grilling of Brexit Party leader Nigel Farage on Thursday. “We have an interview prepared — oven-ready, as Mr. Johnson likes to say,” he said.Click here for Neil’s monologue.“The theme running through our questions is trust, and why at so many times in his career in politics and journalism, critics and sometimes even those close to him have deemed him to be untrustworthy,” Neil said. “The prime minister of our nation will, at times, have to stand up to President Trump, President Putin, President Xi of China. It was surely not expecting too much that he spend half-an-hour standing up to me.”Labour campaign coordinator Andrew Gwynne sent a complaint to the BBC Thursday, accusing the public broadcaster of being “complicit in giving the Conservative Party an unfair electoral advantage.” He said Labour had arranged party leader Jeremy Corbyn’s interview on the understanding Johnson had agreed the same terms.Johnson has also declined an invitation to be questioned by ITV’s Julie Etchingham as part of her series of leader interviews. ITV said they will run a profile of Johnson featuring archival footage instead.Earlier:Britain’s Brexit Election Is Now a Referendum on Jeremy CorbynU.K. Election Primer: Britain’s Economic Future Held in BalanceThe Big Brexit Bet That Hasn’t Paid Off: Therese RaphaelTo contact the reporter on this story: Greg Ritchie in London at gritchie10@bloomberg.netTo contact the editors responsible for this story: Tim Ross at tross54@bloomberg.net, Stuart Biggs, Andrew AtkinsonFor more articles like this, please visit us at bloomberg.com©2019 Bloomberg L.P.