MPs have approved the plan to open an investigation into whether Boris Johnson misled the House over the infamous lockdown parties.

So where does this now leave a prime minister who insists he won’t resign amid cries of a constitutional crisis?

Political Editor Robert Peston tells Tom Bradby what you need to know as he reflects on some astonishing scenes in the House of Commons.

In a typically forensic discussion, Robert evaluates the chances of Johnson holding onto power and the obstacles ahead for him, before identifying the Tory MP he sees as a dark horse among the PM's potential replacements.