GOP senator interested in why Mueller was 'unhappy'

GOP Sen. John KennedyJohn Neely KennedyMORE (La.) said Wednesday he has "no problem" with special counsel Robert MuellerRobert (Bob) Swan MuellerTrump says he'll release financial records before election, knocks Dems' efforts House impeachment hearings: The witch hunt continues Speier says impeachment inquiry shows 'very strong case of bribery' by Trump MORE testifying about his probe into Russia's election interference, saying he wants to know why the special counsel was "unhappy."
"I have no problem if he comes and testifies. It would be very interesting. I'd like to know what he was unhappy about," Kennedy, a member of the Senate Judiciary Committee, told reporters.
Reports have emerged over the past 24 hours indicating that Mueller had expressed frustration to Attorney General William Barr about the attorney general's initial handling of the special counsel's report once it was filed in March.
Mueller twice asked Barr to release the special counsel's own summary of his findings from the 448-page report, according to a letter released Wednesday. Barr had initially summarized Mueller's findings in a four-page letter to Congress on March 24.
Asked about Judiciary Committee Chairman Lindsey GrahamLindsey Olin GrahamGOP senators request interview with former DNC contractor to probe possible Ukraine ties GOP senator blocks Armenian genocide resolution Hannity slams Stern for Clinton interview: 'Not the guy I grew up listening to' MORE's (R-S.C.) indication Wednesday that he's ready to move on from the Mueller probe, Kennedy said: "He's the chairman, but if you're asking me personally I don't have any problem."
Kennedy's comments came as Barr testified Wednesday before the Judiciary panel about his handling of Mueller's report on his findings from the nearly two-year probe into Russian interference in the 2016 election and potential obstruction of justice.
Graham has indicated that he has no intention of asking Mueller to testify before his panel, and other Republicans have signaled a desire to move on from the Russia probe.
"I appreciate very much what Mr. Mueller did for the country. I have read most of the report. For me, it is over," Graham said as part of his opening statement at Wednesday's hearing.
Sen. Richard BurrRichard Mauze BurrGOP senators request interview with former DNC contractor to probe possible Ukraine ties North Carolina congressman says he won't seek reelection after redistricting Senate passes bipartisan bill to permanently fund historically black colleges MORE (R-N.C.), the chairman of the Senate Intelligence Committee, also appeared to dismiss calling Mueller before his panel, telling reporters on Tuesday: "What am I going to learn from Bob Mueller?" 
But other GOP senators have signaled they are open to hearing from Mueller about his probe into the 2016 election. 
Sen. Susan CollinsSusan Margaret CollinsHere are the Senate Republicans who could vote to convict Trump Giffords, Demand Justice to pressure GOP senators to reject Trump judicial pick Senate confirms eight Trump court picks in three days MORE (R-Maine) said last month that "if Mr. Mueller were to testify, it could give the Congress and the American people another opportunity to better understand the facts and conclusions that he reached during his investigation."