The Conservatives have been warning voters of the 'dangers' of Labour winning a huge – or 'super' – majority at the general election on Thursday. But what exactly is a supermajority, and do these warnings add up?

With just under a week to go until polling day, this Institute for Government webinar explores the Conservatives' claims – and set out what a government with a large majority would mean for parliament and British politics. Does it really make a difference if the government has a majority of 100 or more? How hard is it to be a small opposition party? And what is most important in enabling parliament to scrutinise government properly and hold it to account?