On 3 September 2019, the British Conservative Party withdrew the whip from 21 of its MPs who had supported an emergency motion to allow the House of Commons to undertake proceedings on the European Union (Withdrawal) (No. 6) Bill on 4 September. In the hours after the vote, the Chief Whip Mark Spencer informed the rebel MPs that they were no longer entitled to sit as Conservatives. This led to the loss of the Conservative/DUP majority in the Commons.