Sen. Ted Cruz Rafael (Ted) Edward CruzLoeffler calls for hearing in wake of Netflix's 'Cuties' Health care in the crosshairs with new Trump Supreme Court list 'Parks and Rec' cast members hosting special reunion to raise money for Wisconsin Democrats MORE (R-Texas) said Sunday that President Trump's wiretapping claims should be looked at seriously.

"I don't know what basis the president has for these allegations. They are serious allegations," Cruz said on CBS's "Face The Nation."

"We should examine what the evidence is. I think it would be quite good for the administration to put forward what evidence there is ... This is not necessarily as outlandish as everyone in the press suggests."

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Cruz said the Obama administration has targeted its political enemies.

"We do know that the IRS, for example, targeted citizens groups who spoke out in defense of the Constitution, who spoke out against Obama," he said.

"And so the notion is not necessarily outlandish, but it's serious, so it needs to be based on facts."

The president earlier this month claimed former President Obama had wiretapped Trump Tower before the election.

The president last week defended the unsubstantiated claim, saying that the word "wiretap" "covers a lot of different things."

“I think you’re going to find some very interesting items coming to the forefront over the next two weeks," Trump said during an interview last week on Fox News.