FILE - British Prime Minister Boris Johnson shakes hands with European Commission President Jean-Claude Juncker during a press point at EU headquarters in Brussels, Thursday, Oct. 17, 2019. The moving vans have already started arriving in Downing Street, as Britain's Conservative Party prepares to evict Johnson. Debate about what mark he will leave on his party, his country and the world will linger long after he departs in September. (AP Photo/Francisco Seco, File)