Brighton Pavilion (UK Parliament constituency) Clarence Mitchell, a former BBC News reporter and spokesman for the family of Madeleine McCann, was selected as the Conservative Party candidate. On 26 April 2017, it was announced that the local Liberal Democrat party had chosen to not field a candidate in the seat during the upcoming snap election, endorsing Caroline Lucas instead due to their shared pro-EU stance. This occurred on the same night as the local Green Party stood aside in Brighton Kemptown in order to ensure the seat was not won by the Conservatives due to a split vote between progressive parties. Caroline Lucas retained Brighton
Basildon and Billericay (UK Parliament constituency) Martin's. The seat was created for the 2010 general election following a review of the Parliamentary representation of Essex by the Boundary Commission for England. The election was won by the Conservative Party by a large majority although it had a nominal Labour Party status based on its electoral wards. Basildon was one of the best known bellwether constituencies in the UK, having voted for the winning party in each election since 1974. The failure of the Labour Party to win it in the 1992 election – Basildon was the first marginal seat to declare a result – notably foreshadowed