Conservative radio host Mark Levin endorsed Ted Cruz Rafael (Ted) Edward CruzCornyn less popular than Cruz in Texas: poll Trump unleashing digital juggernaut ahead of 2020 Inviting Kim Jong Un to Washington MORE for president late Wednesday as a tribute to former first lady Nancy Reagan.

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“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 Clinton Hillary Diane Rodham ClintonREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails County GOP in Minnesota shares image comparing Sanders to Hitler Holder: 'Time to make the Electoral College a vestige of the past' 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 Trump Donald John TrumpREAD: Cohen testimony alleges Trump knew Stone talked with WikiLeaks about DNC emails Trump urges North Korea to denuclearize ahead of summit Venezuela's Maduro says he fears 'bad' people around Trump MORE, Marco Rubio Marco Antonio RubioWhite House pleads with Senate GOP on emergency declaration Sixteen years later, let's finally heed the call of the 9/11 Commission Schumer urges GOP to reject Trump's 'destructive' national emergency 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.