Liberal Democrat leader: It's time to call a fail, a fail...Nick Clegg delivers his first speech as leader of the Liberal Democrats at the London School of Economics, London today. PRESS ASSOCIATION Photo. Picture date: Saturday January 12, 2008. Liberal Democrat leader Nick Clegg has today called for the lowest GCSE grades to be abolished as part of a bid to drive up school standards. See PA story POLITICS LibDems. Photo credit should read: Fiona Hanson/PA Wire