Sir Ed Davey, the leader of the Liberal Democrats, was challenged to name as many of his 72 MPs as possible while on a roller coaster in Brighton ahead of the party conference. BBC 5 Live’s newest presenter, Matt Chorley, set him the trial as they sat side by side. Sir Ed embraced stunts during the general election campaign earlier this year and rode a different roller coaster shortly after launching the Lib Dem manifesto. Amusingly, he did not mention himself during the latest challenge and managed to name 16 MPs as the G-force hit. “Can we go again?” Sir Ed asked at the end of the ride.