Two things happen in mid-March that will complicate the picture. Campaigning becomes much more expensive, and many of the states become winner-take-all contests.

That could help Trump’s bid, if there are several mainstream opponents.

“Once you get into those winner-take-all states, 40 percent may be enough, because 40 percent gets you 100 percent of the delegates,” Galen said.

“There are three or four candidates with money, organization who can keep going, and Trump hasn’t even begun to play,” Rollins said. “He’s spent less money than anybody. He’s not doing anything politically correct other than winning.”

“We got a long way to go to see if a strong pattern emerges, but I think you’ve got to be blind and just lying to yourself not to think Trump’s the guy to stop. And maybe he is unstoppable,” said Galen.