Will Tory MPs rebel in partygate vote?

Tomorrow there will be a vote in the Commons where Labour is pushing for an investigation into whether Boris Johnson is in contempt of Parliament over his comments on partygate. Which way will the Tory MPs vote?

'Tory MPs are sick to the back teeth of partygate now' - James Forsyth.

All to be discussed as Katy Balls speaks to James Forsyth and Fraser Nelson.