British elections

What the polls say about Britain’s election

Right now, the Conservatives hold 330 of Parliament's 650 seats, meaning they have a slim majority of just five seats. May called the election to add to that majority. Some polling firms have suggested she could still do so — ComRes predicted that she could end up with 362 seats, the biggest majority since the days of Margaret Thatcher. But another polling firm, YouGov, has released estimates based on a complicated big-data model that suggest the Conservatives could drop to 302 seats.
Such a result would be a major shock to Britain, resulting in a hung Parliament where no one party has a majority. Under this scenario, Corbyn could feasibly form a coalition with Britain's third party, the Liberal Democrats, and other smaller parties to become prime minister.