Lib Dem leadership hopefuls Jo Swinson and Sir Ed Davey on Brexit, coalition cuts, climate change and pressing the nuclear button

Here’s a leadership hustings all participants agreed to turn up to.

Unlike the Conservative contenders, the two MPs vying to be leader of the Liberal Democrats had no qualms about accepting our invitation to go head to head.

The party will have a new leader in just over three weeks. It was all but wiped out in the 2015 election after governing in coalition with the Conservatives.

But in May’s European elections they came second, and are riding high in the opinion polls with an anti-Brexit message.

Now the Lib Dems could play a pivotal role in determining the UK’s future relationship with the EU, and, perhaps, in a future government.