In June 2016, an estimated 55% of local adults voting in the EU membership referendum in the constituency voted to remain in the European Union. The estimated turnout of 83.6% was highest turnout of any constituency in the UK, the only higher turnout in the referendum being Gibraltar. In the 2019 EU Parliament elections, over 50% voted for parties supporting continued UK membership of the EU on a turnout of 42.8%. The pro-EU Liberal Democrats were the most popular party with 31.9%, with the pro-Leave Brexit Party in second place with 30%. Despite the seat's Remain-stance, its pro-Brexit MP, Dame Cheryl Gillan, has been re-elected with over half the vote in both the General Elections since the Referendum, albeit with a reduced majority.