In the parallel universe inhabited by government ministers, Brexit is presenting absolutely no problems to Britain whatsoever. Just yesterday, David Davis airily said that there is "no downside" to Brexit. No downside. At all. Encouraging, isn't it? But in the real world, sorrows are coming in battalions.
If those of us backed remain don't make our arguments clearly and forcefully through the impending negotiations, we risk writing a blank cheque for the eurosceptics. During the referendum, the Leave camp were at pains to tell us they didn't know to set out specifics of a post-Brexit Britain, because this wasn't a manifesto. They won the EU vote - now they must be held to account on the ideas put forward.
It's not as if Labour is able to scrutinise the Three Brexiteers at the moment. The party hasn't even got a Shadow International Trade Secretary, and Emily Thornberry is having to double up as both Shadow Foreign and Shadow Brexit. Clegg therefore finds himself in the position of Scrutineer-in-Chief as the Brexiteers get to work. After a fairly terrible few years, this is the moment Nick Clegg has been waiting for.