The <a href="https://en.wikipedia.org/wiki/United_Kingdom" id="mwAX0" rel="mw:WikiLink" title="United Kingdom">United Kingdom</a> votes in a <a href="https://en.wikipedia.org/wiki/2016_United_Kingdom_European_Union_membership_referendum" id="mwAX4" rel="mw:WikiLink" title="2016 United Kingdom European Union membership referendum">referendum</a> to leave the European Union, by 52% to 48%.