I've lost track, how many Tories would need to resign the whip for them to lose their majority even with the DUP?
Actually, CAN they command a majority at the moment? There have been a couplemof by-elections since I last checked.
ETA:
https://www.parliament.uk/mps-lords-and-offices/mps/current-state-of-the-parties/
311 Con + 10 DUP
7 Sinn Féin and the speaker don't vote (except in tie-breaks for Bercow).
So they have 321 out of 441 occupied seats.
1 is currently vacant (Brecon and Radnorshire who fired their Tory MP in June)