Trump’s about four or five days out from where Perry and Gingrich dropped off, but there haven’t been many polls recently.

It is also possible that it won’t change.

Fox News has been polling on Trump longer than most media outlets, and has the polls closest to either side of the first Republican debate. The polling over time pretty much mirrors the graph above (and, we’ll note, contributes to the data in the graph above). Trump rose sharply, and now is dipping slightly among a number of demographics. That’s in comparison to Jeb Bush, who stayed pretty flat until the debate, and then dropped off.