Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellFixing Congress requires fixing how it legislates McConnell: GOP should focus on future, not 'rehash' 2020 Hoyer: Democrats 'committed' to Oct. 31 timeline for Biden's agenda MORE (R-Ky.) on Friday tried to tamp down the political backlash over the Senate Intelligence Committee's decision to subpoena Donald Trump Jr.Don TrumpHow Trump uses fundraising emails to remain undisputed leader of the GOP Donald Trump Jr. joins Cameo Book claims Trump family members were 'inappropriately' close with Secret Service agents 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 BurrDemocratic incumbents bolster fundraising advantage in key Senate races McConnell gets GOP wake-up call Senate approves short-term debt ceiling increase MORE's (R-N.C.) decision, in conjunction with Vice Chairman Mark WarnerMark Robert WarnerThe Hill's 12:30 Report - Presented by Altria - Biden holds meetings to resurrect his spending plan Democrats feel high anxiety in Biden spending conflict Biden meets with Jayapal to kick off week of pivotal meetings 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 TillisSenate GOP signals they'll help bail out Biden's Fed chair GOP rallies around Manchin, Sinema Advocates frustrated by shrinking legal migration under Biden 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 HannityBiden giving stiff-arm to press interviews Graham says Brazilian immigrants arriving at border 'wearing designer clothes and Gucci bags' Judge: Request for Tucker Carlson personnel files is 'intrusive' 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.”