'Treating him very unfairly:' Trump gives full-throated defense of Dr. Oz in Pennsylvania

Speaking at a rally in Greensburg, Pa., former President Donald Trump touted his endorsement of Republican Pennsylvania Senate candidate Dr. Mehmet Oz.

"I just think he's gonna win. He's a great gentleman. I've known him so long," Trump said of Oz.

"His show is great. He's on that screen. He's in the bedrooms of all those women," he quipped about the TV host's popularity. "He's taken a lot of horrible, unfair and untrue, shots."

"They are treating him very unfairly," Trump continued.

"Dr. Oz is a man who truly believes in Make America Great Again," he asserted, before going on to vouch for his preferred candidate on issues such as illegal immigration and China.

Trump's backing of Oz brought him in conflict with former Secretary of State Mike Pompeo, who has been a vocal critic of Oz and instead backs hedge fund manager David McCormick. Trump on Friday called McCormick a "liberal Wall Street Republican."

"Not only did he not engage in the American [political process] but he engaged in the Turkish political process," Pompeo said of the television personality. "That raises in my mind a lot of judgments about his priority."

Oz possesses Turkish citizenship but has promised to renounce it should he win election to the Senate.

Following a slew of primary victories for Trump-backed candidates, the former president highlighted a "55-0" record in endorsements this electoral cycle. Most notably, author J.D. Vance secured a firm victory in the Ohio Republican Senate primary following Trump's endorsement in what had previously been a crowded and close race.