Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellFEC flags McConnell campaign over suspected accounting errors Poll: 59 percent think president elected in November should name next Supreme Court justice Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' 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 John Trump'Tiger King' star Joe Exotic requests pardon from Trump: 'Be my hero please' Zaid Jilani discusses Trump's move to cancel racial sensitivity training at federal agencies Trump International Hotel in Vancouver closes permanently 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 Burr Richard Mauze BurrRep. Mark Walker says he's been contacted about Liberty University vacancy Overnight Defense: Trump rejects major cut to military health care | Senate report says Trump campaign's Russia contacts posed 'grave' threat Senate report describes closer ties between 2016 Trump campaign, Russia MORE's (R-N.C.) decision, in conjunction with Vice Chairman Mark Warner Mark Robert WarnerDemocrats call for declassifying election threats after briefing by Trump officials It's time to upgrade benefits Intelligence chief says Congress will get some in-person election security briefings MORE (D-Va.), to subpoena Trump Jr. sparked intense division among Senate Republicans.

Several — including Burr's fellow senator from North Carolina, Thom Tillis Thomas (Thom) Roland TillisThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting OVERNIGHT ENERGY: EPA head questions connection of climate change to natural disasters | Pebble Mine executives eye future expansion in recorded conversations | EPA questions science linking widely used pesticide to brain damage in children Liberal super PAC launches ads targeting vulnerable GOP senators over SCOTUS fight 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 Hannity Sean Patrick HannitySunday shows preview: Justice Ginsburg dies, sparking partisan battle over vacancy before election Cruz: Trump should nominate a Supreme Court justice next week Ex-Pence aide: Trump spent 45 minutes of task force meeting 'going off on Tucker Carlson' instead of talking coronavirus 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.”