At one point during the rally, Trump attempted to discredit Oz's opponent, Dave McCormick, a hedge fund manager whose allies have relatively deep pockets.

“So I don’t know David well and he may be a nice guy, but he’s not MAGA, he’s not MAGA,” Trump said as he referred to his own campaign slogan, “Make America Great Again.” “I do know that he was with a company that managed money for communist China, and he is absolutely the candidate of special interests and globalists and the Washington establishment.”

Trump continued, “As your senator, Oz will fight to end illegal immigration, end sanctuary cities, and put dangerous criminals behind bars. That’s what he wants to do. He’s going to stop the Democrats, socialists, and communists, and confront China like no senator in the history of our state.”

He also added, “I’ve known him a long time. He’s on that screen,” Trump said. “He’s in the bedrooms of all those women, telling them good and bad. And they love him.”

Newly-elected Ohio Republican Senate nominee J.D. Vance also joined Oz and Trump on Friday. “It’s not about Dr. Oz,” Vance said. “It’s not about anything other than you and Donald Trump.”

He added that a faction of top Republicans is “trying to make it so that Trump-endorsed candidates get defeated because when they do, the fake news media back there will say, ‘Well, Donald Trump’s endorsement doesn’t matter.'”