MSNBC's Steve Kornacki then asked Brooks if he will support Trump if he wins the Republican nomination.
"If Donald Trump is the nominee of the Republican Party, I’m going to sit back and I am going to watch," Brooks responded. "I’m not going to be like Sen. Ben Sasse, who publicly states that under no circumstances will he vote for Donald Trump if he is the Republican nominee."
Kornacki tried to clarify Brooks' response, asking if he was ruling out voting for Trump. Brooks said that the general election is a secret ballot, but said he would not vote for a Democratic candidate. Brooks added that he wouldn't lend his name publicly to Trump.
Earlier in the interview, Brooks said that those who have endorsed Trump are going to regret it eventually.
"I think what you’re going to see 12 to 18 months from now is a lot of people who have supported Donald Trump, they’re going to regret having done so, 12 to 18 months, but right now they’re enamored with the personality. They’re enamored with a projection of Donald Trump when they really should be looking at what he’s going to do if he becomes President of the United States," he said. "I don’t think you can trust Donald Trump with anything he says."
Watch the interview via MSNBC: