Tory leadership debate – live: Johnson refuses to say whether he would resign if Brexit deadline is missed as he flounders over US diplomatic row

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Conservative leadership debate: Jeremy Hunt asks Boris Johnson if he will resign if Brexit not delivered by October 31

Boris Johnson and Jeremy Hunt are going head-to-head in their only televised debate of the Tory leadership contest.

The two candidates to succeed Theresa May clashed after a day in which tensions between the UK and the US deepened following the leak of comments made by the British ambassador in Washington.

Earlier, MPs overwhelmingly backed moves to extend abortion and same-sex marriage to Northern Ireland, if power-sharing is not restored by October.

Meanwhile, Jeremy Corbyn told party members that Labour will back Remain in a new referendum over a no-deal Brexit or a Conservative agreement.

See below for live updates

Key Points

• Labour backs Remain in new referendum, Corbyn tells party members
• ... as three peers resign the Labour whip over antisemitism row
• Johnson and Hunt to go head to head in only leadership TV debate
• MPs back bids on extending same-sex marriage and abortion in Northern Ireland
• Trump calls May 'foolish' amid furious US ambassador row

[9 July 2019 21:42 · Benjamin Kentish]

Analysis: Boris Johnson is a gremlin - he will dissolve on contact with the truth, writes our political sketch writer, Tom Peck

[9 July 2019 21:49 · Benjamin Kentish]

Jeremy Hunt says Boris Johnson will consign UK to 'do or die' no-deal Brexit just so he become PM

[9 July 2019 22:01 · Benjamin Kentish]

That's all for today's live coverage - thanks for following.