He had plenty of choice. He could have (and should have) said that he'd support the government when he agreed and wouldn't support when he didn't. He could have joined but made tuition fees a condition of support; he could have joined the Labour party in a coalition. He made a really, really bad...
More seriously: I'd say three government biggies in the past 30 years
Nick Clegg's decision to back the Tories - caused a complete collapse of one party. The Labour government's decision not to ensure control of the banks and the Thatcher government decision to sell of council houses without...