Labour and Tory MPs from County Durham clashed at Parliament's terrace bar this week, as the row over Partygate intensified.
North West Durham Tory MP Richard Holden accused City of Durham Labour MP Mary Foy of "berating and grabbing" him at the exclusive Stranger's bar for MPs in Westminster on Tuesday.
Following the incident Ms Foy apologised to Mr Holden, but a Labour source downplayed the extent of the disagreement.
