Transcript for Donald Trump Back on the Trail After Being Shut Out in Colorado
We move on to the race for the white house. Donald Trump, roaring back into action. Speaking to an overflow crowd in Rochester, taking on the electoral system, and attacking Ted Cruz, who just won the latest delegate hall in Colorado. But New York's primary is the next crucial prize. Here's Mary Bruce in Rochester with the trump campaign tonight. Reporter: Tonight, he's back. There's nothing like a trump rally, folks. Reporter: Donald Trump, loving his fans. But railing against the electoral system. Complaining about losing delegates, even when he's winning votes. We've got a corrupt system. It's not right. We're supposed to be a democracy. Lying Ted, he's a beauty. Reporter: Trump's campaign even accusing Cruz of gestapo tactics. You go to these conventions, and you see the gestapo tactics. Gestapo tactics? God bless the state of Colorado. Reporter: In a state with no primary, Cruz sweeping Colorado's 34 delegates. I believe the first ballot will be the highest vote total Donald Trump receives. And on a subsequent ballot, we're gonna win the nomination and earn a majority. Reporter: And if he fails? Here's one take. The liberal editorial board of the Boston globe today publishing a fake front page. Envisioning a world under president trump, warning of deportations, riots, and a free press under siege. How about that stupid Boston globe? It's worthless. Sold for a dollar. Reporter: Trump has about 60% of the delegates he needs, but it's getting harder and harder to close that deal. Tom?
This transcript has been automatically generated and may not be 100% accurate.