Unity is the message that Donald Trump wants to broadcast throughout the Republican convention, which began yesterday in Milwaukee, Wisconsin, on the day he officially became the party’s nominee. Unity is the concept through which he seeks to rebrand himself before the nation after surviving an assassination attempt on Saturday. Unity is also the message that pulsates in the announcement he made yesterday of his choice to accompany him to the polls in November as his running mate: Ohio Senator J.D. Vance.