Tory chief Lee Anderson became embroiled in an "aggressive" row with expelled Conservative Andrew Bridgen and the father of Game of Thrones star Rose Leslie in a Commons restaurant.
The controversial deputy chairman was said to have told 69-year-old ex-Tory councillor Sebastian Leslie to "come outside and we'll sort it out" in a row over Mr Bridgen being kicked out of the party.
The altercation came shortly after Mr Anderson locked horns with Metropolitan Police Commissioner Sir Mark Rowley during a committee hearing, when the Met chief schooled him on policing Extinction Rebellion protests.
