David Aaronovich examines the likely lasting impact of the UK's decision to quit the European Union - not on Britain but on mainland Europe. The European Union is struggling to reconcile competing views of the economy, of national identity and of ideology. As populist political parties play an increasing role in the governance of member states, some expert Euro-watchers give their views of the divisions and the chances of them being reconciled. Might the EU "widen" its reach to new countries? Or deepen" the binds between member countries? Or is it time to concede that voters across the Continent prefer sovereignty to be exercised within national states.

Presenter: David Aaronovich