Rep. Jason Chaffetz (R-UT) said this morning that the House will take a "hard look at" President Donald Trump's claim that President Barack Obama ordered a wiretap of Trump Tower during the presidential campaign. 

The tweets from Trump early Saturday accused Obama of "McCarthyism," comparing it to Watergate and calling Obama "sick."

On Sunday, the White House called on Congress to investigate following a swift denial from Obama's spokesman. 

Chaffetz, the chairman of the Oversight Committee, said the Intelligence Committee -- led by Rep. Devin Nunes (R-CA) -- will take the lead on the probe and that his committee will play a supporting role. 

"I'm going to go into it [with] eyes wide open," said Chaffetz.

He pointed out that the Obama administration is "notorious" for this type of behavior, including the IRS "targeting Americans based on their political beliefs" and the DOJ's surveillance of Fox News reporter James Rosen.

Last year, dozens of Secret Service agents were disciplined for leaking information about Chaffetz as apparent retribution for his investigation of the agency.

"This stuff does happen and it's not necessarily done the legal, lawful way. ... I'm the chairman of the Oversight Committee. Forty Secret Service agents dove into my records illegally," he recalled.

Watch his full comments above. 

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