Conservative radio host Mark Levin endorsed Ted CruzRafael (Ted) Edward CruzOvernight Health Care: Trump eases rules on insurance outside ObamaCare | HHS office on religious rights gets 300 complaints in a month | GOP chair eyes opioid bill vote by Memorial Day HHS official put on leave amid probe into social media posts Trump, Pence to address CPAC this week MORE for president late Wednesday as a tribute to former first lady Nancy Reagan.

“I decided today was the day ultimately because of Nancy Reagan’s death,” he said on “LevinTV.”

“If you’re 45 years old or younger, you’ve never had the opportunity to vote for a conservative for president of the United States,” Levin continued. “You don’t know what it’s like — how invigorating it is, how exciting it is, how you become an activist even when you weren’t planning to be,” he added.

“Let me suggest if [Cruz] gets the nomination, he will get elected president of the United States. If you just think about it in your mind’s eye, there on the stage, Hillary ClintonHillary Diane Rodham ClintonWoman behind pro-Trump Facebook page denies being influenced by Russians Trump: CNN, MSNBC 'got scammed' into covering Russian-organized rally Pennsylvania Democrats set to win big with new district map MORE and Ted Cruz, I think he’d wipe the floor with her.”

Levin said that his endorsement of Cruz does not mean he is opposed Cruz's Republican rivals, Donald TrumpDonald John TrumpAccuser says Trump should be afraid of the truth Woman behind pro-Trump Facebook page denies being influenced by Russians Shulkin says he has White House approval to root out 'subversion' at VA MORE, Marco RubioMarco Antonio RubioColbert: Students taking action on gun violence 'give me hope' Lawmakers feel pressure on guns Florida lawmaker's aide fired after claiming shooting survivors were 'actors' MORE or John Kasich.

"My support is because I honestly believe that this is a man who understands where this country has been and where it needs to go,” Levin said. “If you’re a conservative, if you’re a constitutionalist, if you’ve been a Tea Party activist, if you’re a Reaganite or a Reagan Democrat, it really is in the end a simple decision.”

Levin defended Cruz from Trump two months ago, offering the outspoken billionaire some "friendly advice" about conducting himself as a presidential candidate.

"Either cut the crap — your accusations this morning that Cruz is a Canadian, a criminal, owned by big banks, etcetera, or you will lose lots and lots of conservatives," he said.

"Save the liberal New York bully tactics for the New York liberals. Put down your computer keyboard for a few hours, think before you tweet and collect yourself."

This report was updated at 8:18 a.m.