A self-claimed PR guy trolled the loony left for unknown reasons by stealing an already obnoxious semi-public figure (Colin Johnson), posting as him for over a month and retweeting popular figures in Brexit, and then finally (having started the troll before the French election) was able to tweet Ladbrokes who saw his tweet history and responded. Then the screen grabs got passed around and the media picked it up.
Like most trolls, it was a massive waste of time on his end for the lulz and the guy behind it is very impressed with himself.