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House Speaker Paul Ryan’s announcement that he is “not ready” to support Donald Trump “probably represents a fairly large block of people who are very anxiety-ridden,” says Newt Gingrich.

He broke down the latest challenge facing the GOP on America’s Election Headquarters, explaining how Ted Cruz’s withdrawal from the race on Tuesday “created a vacuum.”

“There were a lot of people who thought they would negotiate with Trump over the next two months as he tried to pull together enough delegates. And suddenly there on Wednesday, they were faced with the reality that he is the nominee,” explained Gingrich.

“And I think a number of them panicked.”

Now, Trump “has an obligation as the party nominee to find a way, a path to get to bringing the party back together,” the former House Speaker added.

While Gingrich said Ryan’s refusal to endorse Trump wasn’t something he would have done, he “was much more offended by Presidents Bush and Gov. Romney,” he told Uma Pemmaraju.

The former presidents have publicly said they won't be endorsing Trump or commenting on the presidential campaign.

Romney says he will not be attending this summer’s Republican National Convention, where Trump is expected to be officially nominated.

“When those three were the nominees, they expected all of us to support them,” said Gingrich.

“They would have been deeply offended if we had said something like Paul Ryan said yesterday. And I think it’s a bit much for people who got to be President or got to be the nominee – because of the Republican Party – to now turn around and decide that they are smarter than millions and millions of Republican voters, and that they’re not going to be part of the team.”

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