Donald Trump: 57.38%Not_Madigan: 40.72%In a Republican primary of course and since Donald Trump will be the incumbent it would be very difficult to win against him. If Trump numbers continue to drop among the Republican base then give or take the Mountain West, West Coast, and parts of the Midwest to Not_Madigan but basically Not_Madigan gains the more moderate and liberal republicans and the a large chunk of the libertarian republican vote along with the Mormon vote which i suspect will still dislike Trump, Trump wins the rest and with massively margins in the South and Mid-Atlantic cruises to Re-Nomination. But in the end it doesn't matter as like Ted was to Jimmy, Trump goes down in November due to a split Republican base.