Eliza Collins

USA TODAY

On the morning thousands of Republicans will congregate in Cleveland to kick off a week of celebrations that will end in crowning Donald Trump the party’s nominee, Hillary Clinton is trying to tap into some Republicans' uncertainty about Trump.

The ad, “Confessions of a Republican II,” uses the same actor as a 1964 ad that voiced concern about then-Republican nominee Barry Goldwater.

“I was a Republican who voted for Eisenhower and Nixon, my father was a Republican, his father was, the whole family was. But Donald Trump he’s a different kind of man. This man scares me,” veteran character actor Bill Bogert says in Clinton’s ad. “Trump says we need unpredictability when it comes to using nuclear weapons, what is that supposed to mean? When a man says that he sounds a lot like a threat to humanity.”

Clinton has attempted to seize the support of Republicans who don’t like Trump. And her team has been promoting a series of material highlighting which Republicans do not support Trump and won’t be at the convention.

“I’ve thought about not voting. But you can’t do that. That’s saying you don’t care who wins and I do care,” Bogert continues. “I think the party is about to make a terrible mistake in Cleveland and I have to vote against that mistake on the 8th of November.”