On 29 October 2019, Prime Minister Boris Johnson announced that the next general election would be held on 12 December 2019. The reason was so that Conservatives could win a majority in parliament to pass a Brexit bill. Labour were left with just over 200 seats, their worst result since 1935. However, the party's share of the vote was higher than in 2015 and 2010. Conservatives won seats in England and Wales that were traditionally Labour seats, in a move the British media called: "a realignment of UK politics".