GOP senator on Trump's Roger Stone tweet: 'Just because you can sing ... doesn't mean you should sing'

Sen. John KennedyJohn Neely KennedyMORE (R-La.) on Sunday cautioned President TrumpDonald TrumpTrump hails Arizona Senate for audit at Phoenix rally, slams governor Arkansas governor says it's 'disappointing' vaccinations have become 'political' Watch live: Trump attends rally in Phoenix MORE against tweeting about criminal cases such as the one involving the president's longtime associate Roger StoneRoger Jason StoneHas Trump beaten the system? Trump is on the ballot whether his name is there or not Bannon asked Trump DOJ to reimburse his legal fees from Russia probe: report MORE.

The Louisiana Republican told CBS’s “Face The Nation” that the president has a right to tweet about the case but that he hopes Trump will “accept” the advice from Attorney General William BarrBill BarrTrump: Washington/Lincoln ticket would have had hard time beating me before pandemic Trump says Barr 'never' told him he thought he'd lose election Speeches aren't enough: Biden must ditch bipartisanship, endorse ending filibuster MORE and refrain from doing so.

"Just because you can sing, though, doesn’t mean you should sing," Kennedy said.

"This is a case where tweeting less would not cause brain damage," he added.

Kennedy said Trump put Barr in an “awkward spot” when he tweeted about Stone’s case, adding the attorney general is “tough as a boot.”

“While the attorney general and others were trying to get the sentencing recommendations straight, the president tweeted, put the attorney general in an awkward spot, and he spoke out,” he said.

Justice Department prosecutors recommended a seven- to nine-year sentence for Stone, who was convicted of lying to Congress and witness tampering. But after Trump tweeted that the recommendation was unfair, the department announced that it wanted a shoter sentence, prompting the entire prosecution team to withdraw from the case.

Democrats have accused Barr of working on the president’s behalf to protect one of his associates.