Could Boris be toppled by accident?

The Sue Gray report came in last week, but we haven't seen a coordinated effort to either stand behind the Prime Minister, or kick him out. Instead, there has reportedly been a drip of letters of no confidence letters coming in from individual Tories, rather than an organised group. Could we finally see the 54 letters needed to trigger a vote on Johnson's leadership?

Cindy Yu, Fraser Nelson and James Forsyth discuss.