Sen. Rand PaulRandal (Rand) Howard PaulOn The Money — Democrats craft billionaire tax with deal in reach Rand Paul questioning if crypto could become world reserve currency The Senate is setting a dangerous precedent with Iron Dome funding MORE (R-Ky.) on Sunday expressed some concerns with Rep. Mike Pompeo (R-Kan.), Donald TrumpDonald TrumpYoungkin ad features mother who pushed to have 'Beloved' banned from son's curriculum White House rejects latest Trump claim of executive privilege Democrats say GOP lawmakers implicated in Jan. 6 should be expelled MORE's pick to serve as CIA director.

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The libertarian senator said on CBS's "Face the Nation" that it concerns him that Pompeo supported the Patriot Act.

"But I would say that with Pompeo, he's going to have to also answer to my liking whether or not he's still for torture, whether or not he's for waterboarding," Paul said.

"That's important."
 
Paul noted that Pompeo has also supported expanding the powers of the National Security Agency (NSA).
 
"Many of the NSA powers were done, I think, in secret without the knowledge of most members of Congress," he said.
 
"Even some members who are authors or co-authors of the Patriot Act said, 'We never intended for them to collect all that data in Utah. And they didn't tell us.' "
 
One of the questions he said he would ask Pompeo would be whether there are secret programs that even Congress doesn't know about, Paul said.
 
"And I think there still are programs ongoing that the bulk of Congress is not aware of," Paul said.
 
The president-elect last week announced that he's picked Pompeo to lead the CIA.
 
Pompeo is considered a serious — and hawkish — member of the Republican national security establishment.