Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellGOP nervous that border wall fight could prompt year-end shutdown GOP nervous that border wall fight could prompt year-end shutdown Jon Stewart slams McConnell over 9/11 victim fund MORE (R-Ky.) on Friday tried to tamp down the political backlash over the Senate Intelligence Committee's decision to subpoena Donald Trump Jr.Donald (Don) John TrumpTrump remarks deepen distrust with intelligence community Trump remarks deepen distrust with intelligence community Lieu trolls Trump with 'warning' to foreign powers on office door MORE, urging the president "not to worry."

"I know the president's upset about that, but I think he ought not to worry about it. The chairman of the Intelligence Committee has already said the committee, when it reports, will find no collusion," McConnell told WHAS, a Kentucky radio station.

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McConnell's comments come after Intelligence Committee Chairman Richard BurrRichard Mauze BurrElection security bills face GOP buzzsaw Election security bills face GOP buzzsaw Tillis dodges primary challenge in NC MORE's (R-N.C.) decision, in conjunction with Vice Chairman Mark WarnerMark Robert WarnerElection security bills face GOP buzzsaw Election security bills face GOP buzzsaw Trump puts GOP in tough spot with remarks on foreign 'dirt' MORE (D-Va.), to subpoena Trump Jr. sparked intense division among Senate Republicans.

Several — including Burr's fellow senator from North Carolina, Thom TillisThomas (Thom) Roland TillisDemocrats' 2020 Achilles's heel: The Senate Democrats' 2020 Achilles's heel: The Senate Trump puts GOP in tough spot with remarks on foreign 'dirt' MORE (R), who is up for reelection — were critical of Burr on Thursday.

But McConnell, during Friday's radio interview, defended the Intelligence Committee, noting that its years-long investigation into the 2016 election and Russian interference had remained bipartisan.

"This Intelligence Committee in the Senate, unlike the Intel Committee in the House, has not descended into partisan bickering. It's been a largely bipartisan effort. Chairman Burr has indicated that they'll be reporting very soon," McConnell said.

He added that "we ought to just take a deep breath and understand that this episode is coming to an end."

The decision by Burr and Warner to subpoena Trump Jr. comes as members of the Intelligence Committee say they are trying to wrap up their investigation, and subsequent reports, by August. The decision appeared to catch a number of Senate Republicans off guard, with several members of the committee indicating that they hadn't been given a heads up.

Trump said on Thursday that he was "surprised," adding that he "saw Richard Burr saying there was no collusion two or three weeks ago."

Burr, in a closed-door GOP lunch on Thursday, detailed the steps that he and Warner had taken to try to set up a time to talk with Trump Jr. before issuing the subpoena. McConnell also reportedly defended Burr during the lunch.

McConnell also predicted to Fox News's Sean HannitySean Patrick HannityOcasio-Cortez and Cruz's dialogue shows common ground isn't just for moderates Hannity fires back at Acosta over book: 'Go hawk that garbage' on CNN Hannity fires back at Acosta over book: 'Go hawk that garbage' on CNN MORE on Thursday night that "this is going to have a happy ending."

“I understand the president’s frustration here. But I think that this is just a blip," he said. "I think that the case is closed. I think that the controversy has been concluded.”