Gavin Grey: UK correspondent says there's no guarantee Boris Johnson will survive no-confidence vote

Boris Johnson is facing a challenge for his leadership.The British Prime Minister is facing a no-confidence vote in the coming hours, with a growing number of Conservative MPs concerned about the Partygate scandal.UK correspondent Gavin Grey says it's a blow for Johnson's mandate to govern.He told Tim Dower while Johnson's expected to survive today's vote, there's no guarantee he will.“Apparently on street polls, about 60 per cent of people think Boris Johnson should resign, and of course, the MPs worried about getting re-elected at some point.”We're expecting the outcome of the vote at about 8am.LISTEN ABOVESee omnystudio.com/listener for privacy information.