What is a hung parliament? What happens when no party wins an election majority? B ritain has a hung parliament , after Labour's victory in Southampton Test made it impossible for any party to reach the 326 MPs required to achieve an absolute majority in the House of Commons. The exit poll at 10pm last night correctly predicted that the Conservatives would lose their overall majority. Prime Minister Theresa May now looks certain to step down. But what exactly is a hung parliament and what happens if no party wins the General Election 2017? Who will be the prime minister? When will we get the next government? What is a hung parliament? A hung parliament means no party has won enough seats in a general election to have a majority in the House of Commons. If no one gets a majority at the election, who will be PM? T heresa May. In a hung parliament, the incumbent PM stays in office - and lives in Downing Street - until it is decided who will attempt to form a new government. Ho