Conservative CNN contributor Rick Santorum was called out on Sunday after he seemed to be uneducated about President Donald Trump's attempt to have Ukraine investigate Joe Biden and his son.

During a panel discussion on CNN, Republican contributor Mia Love said that Trump's communication with Ukraine was not "appropriate" if he was looking for campaign help.

"There is no equivalence between Joe Biden and Hunter Biden and what this president has allegedly done," Democratic consultant Karen Finney noted. "The things that were investigated against the Bidens [were] shelved, totally debunked."

In a fairly contentious interview with Steve Mnuchin, CNN host Jake Tapper pointed out how Donald Trump's children -- Don Jr., Ivanka and Eric -- have been using their father's name to swing international deals after the Treasury secretary accused former Vice President Joe Biden's son of doing the same.

Mnuchin first dismissed reporting by the Washington Post and the conservative Wall Street Journal that Donald Trump was withholding Ukraine funding in an effort to get dirt on Biden and his son -- saying neither newspaper could be trusted -- he then complained to the CNN host about having to spend seven and a half minutes talking about Trump's Ukraine scandal.