Giuliani this morning endorsed Trump in an interview with CNN, but repeatedly stressed that he is not involved with the Trump campaign.
CNN's Chris Cuomo prompted Giuliani, asking him, “Why not say, ‘I'm Rudy Giuliani, I mean a lot in New York politics, I endorse Donald Trump?’”
Giuliani complied: “I'm Rudy Giuliani, I mean a lot in New York politics, I endorse Donald Trump."
"But I’m not part of the campaign,” he said.
"I'm not a surrogate," Giuliani said. "They haven’t asked me to do anything. I’m not involved in the campaign."
Giuliani continued: "I'm not called upon to give advice, except a few times when I volunteered it. I'm not part of the campaign apparatus. I don't want people to think I am.”
"Cruz is a straight overhand fastball for Hillary Clinton. She’ll knock him out of the park," Giuliani said of Cruz. "Trump - she'll have no idea what to do with. He is a Mariano Rivera," Giuliani said, referring to the former Yankee relief pitcher.
Giuliani, who has said before he would vote for Trump, said he believes Trump is "clearly the best choice."
"He is the best choice for New York. He is the best choice for the country," Giuliani said. "He is the one who can beat Hillary Clinton."
Giuliani was the Republican mayor of New York City from 1994 until 2001, notably during the 9/11 terror attack.