The ultimate test for anti-Brexit MPs: will they resign their seats?

MPs who feel strongly enough about a particular issue – whether Heathrow expansion, the Anglo-Irish Agreement or increasing pre-trial detention – have sometimes resigned their seats and stood again as independents or for another party. Will anti-Brexit MPs adopt this strategy? Sean Swan says it is fraught with risks, but resigning en masse would be the only conclusive test of whether public opinion has switched to Remain.