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Republican presidential candidate Ted Cruz said he no longer cares what frontrunner Donald Trump says or tweets.

He was asked by Megyn Kelly during a special hour-long sit-down in front of an audience at Madison Masonic Center in Wisconsin how he felt now that Trump has admitted that re-tweeting an unflattering picture of Heidi Cruz was a mistake.

“Donald saying he made a mistake -- I suppose miracles can happen,” Cruz said to laughter. “But, to be honest, it’s gotten to the point, as this campaign’s gone on, the silliness, the personal attacks, the nastiness, the cursing from Donald. My reaction is, ‘Who cares?’

"I don't care what he says anymore. I don't care what he tweets. What I'm focused is on is how do we solve the real problems of this country, America's real challenges?"

Cruz said that Trump resorts to lashing out with personal attacks because he doesn't have the actual solutions to those challenges.

“His response whenever he gets upset is he yells and screams and curses and he insults people. That’s his natural safe zone. You know something about that personally, Megyn, but that’s how he treats everybody. When he’s nervous, when he’s scared, his security blanket is to insult people.”

Cruz also said that he doesn't care about getting an apology from Trump, but wants one from President Obama and Hillary Clinton "to the millions of people who are suffering right now," including he said, the single mothers who've seen a cutback in their hours resulting from Obamacare.

Earlier, Cruz said there are "no beans to spill" about his wife, who's been working in the "rough and tumble" finance industry for 20 years. He said that she's not bothered by "bullies like Trump."

“She’s dealt with people who think that they can just yell and scream at a strong woman and make her cower. Let me tell you, Heidi Cruz is not remotely scared of Donald Trump,” Cruz said.

He also spoke about his daughters Caroline and Catherine, and how he's proud that they're seeing their mother stand up to bullying.

The conversation also covered Cruz's faith and religious liberty. Cruz said that he's not running as "pastor in chief" and that it's not the job of the president to preach or try to impose his beliefs on the citizens. 

He said that while atheists shouldn't be forced to participate in religious activities, the Constitution doesn't give them a "heckler's veto."

"You have the right not to participate. But you don't have the right to silence everybody else. The First Amendment protects the religious liberty of Christians, of Jews, of Muslims, of atheists. Every one of us, we have a right to seek out and worship God, to live according to our own faith and conscience."

He added that no one is more intolerant than a leftist who says "don't you dare say Jesus around me," drawing a huge applause from the crowd, and said that he favors a "live and let live" approach.

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