FILE - Vote Leave campaigner Boris Johnson holds a press conference at Vote Leave headquarters in London, June 24, 2016. Outgoing U.K. Prime Minister Boris Johnson has been the bane of Brussels for many years, from his days stoking anti-European Union sentiment with exaggerated newspaper stories to his populist campaign leading Britain out of the bloc and reneging on the post-Brexit trade deal he himself signed. (Stefan Rousseau/Pool via AP, file)