Brexit vote: What you need to know about the U.K.'s referendum on the EU

The United Kingdom is days away from a referendum on whether or not to stay part of the European Union. See what’s at stake ahead of the so-called Brexit vote.

Will they stay or will they go? See what's at stake in the June 23 vote

A campaigner for Vote Leave, the official Leave campaign organization, holds a placard during Sunday in London's Hyde Park during a rally for Britain Stronger in Europe, the official Remain campaign group seeking to avoid Brexit, ahead of the the forthcoming EU referendum. (Ben Stansall/AFP/Getty Images)