That speech, by the way, is what propelled him to being a kind of fringe candidate in the primaries to the top of the pack. Says a lot about the GOP base.

Polls included Trump before that announcement, everyone knew he was going to run. And he wasn't polling all that well. I know candidates get a small bump when the make the formal announcement but the only explanation for the immediate, huge bump he got was that GOP voters really liked that speech.