Trump is the biggest gainer in the poll, up 6 points since July according to the first nationwide CNN/ORC poll since the top candidates debated in Cleveland on Aug. 6. Carson gained 5 points and Fiorina 4 points. Trump has also boosted his favorability numbers among Republicans, 58% have a favorable view of Trump now, that figure stood at 50% in the July survey.

These nationwide findings follow recent polling in Iowa and New Hampshire showing Trump also leads the Republican field in those two key early states.

Bush, who held the top spot in the field in most CNN/ORC polls on the race between last fall and Trump’s entry into the race in June, has seen his favorability ratings drop alongside his standing in the contest. Overall, 56% hold an unfavorable view of the former Florida governor and 42% of Republican voters have a negative impression. That’s an increase in negative views among all adults (up from 43% since July) and among Republican voters (up from 34% unfavorable).