Britain must "tear down" trade barriers with Europe if the economy is to prosper again, Liberal Democrat leader Sir Ed Davey warned.In a keynote address to the party's spring conference in York, Sir Ed said Boris Johnson's "botched" Brexit deal has been a disaster for UK business.

Britain must "tear down" trade barriers with Europe if the economy is to prosper again, Liberal Democrat leader Sir Ed Davey warned.In a keynote address to the party's spring conference in York, Sir Ed said Boris Johnson's "botched" Brexit deal has been a disaster for UK business.