Despite campaigning to leave in 1975, Plaid campaigned for a Remain vote in the 2016 referendum on the UK's membership of the EU, spending £27,495 on the campaign. In the referendum Wales voted 52.5% in favour of Leave. Immediately after the referendum, Leanne Wood stated that voters 'must be respected' and criticised calls for a second EU referendum. Plaid Cymru later modified their policy to support a People's Vote.