Brexit refers to Britain's withdrawal from the European Union, which 52% of British voters chose to do in a June 2016 referendum. Theresa May became the new Prime Minister and set up departments to oversee Brexit negotiations. Reasons for Brexit included concerns over EU interference in the economy and high unemployment in the EU. Potential gains were seen as less regulation, budget savings, and new trade deals, while losses could include tariffs, loss of single market access, and investment drops. Brexit may impact the UK through changes to trade, foreign investment, immigration policy, and economic regulation.