Sen. Bob CorkerRobert (Bob) Phillips CorkerRepublicans, ideology, and demise of the state and local tax deduction Cheney set to be face of anti-Trump GOP How leaving Afghanistan cancels our post-9/11 use of force MORE (R-Tenn.) remarked Wednesday that some senators have stopped paying attention to President TrumpDonald TrumpNorth Korea conducts potential 6th missile test in a month Kemp leading Perdue in Georgia gubernatorial primary: poll US ranked 27th least corrupt country in the world MORE's Twitter feed after the president's latest missives blasting the special counsel probe.

"I mean seriously, on the tweets, is anybody even paying attention anymore? I mean there's so many of them, they conflict each other so much. Nobody pays attention around here," Corker told reporters outside a Senate GOP lunch.

Corker, a frequent Trump critic who is retiring after this year, noted that the president's Twitter followers likely still pay attention to his tweets.

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Corker's comment came after Trump said on Twitter earlier Wednesday that Attorney General Jeff SessionsJefferson (Jeff) Beauregard SessionsPress: For Trump endorsement: The more sordid, the better Those predicting Facebook's demise are blowing smoke If bitcoin is 'digital gold,' it should be taxed like gold MORE should end special counsel Robert MuellerRobert (Bob) MuellerAn unquestioning press promotes Rep. Adam Schiff's book based on Russia fiction Senate Democrats urge Garland not to fight court order to release Trump obstruction memo Why a special counsel is guaranteed if Biden chooses Yates, Cuomo or Jones as AG MORE's probe into the 2016 election and potential collusion between the Trump campaign and Moscow "right now."

"..This is a terrible situation and Attorney General Jeff Sessions should stop this Rigged Witch Hunt right now, before it continues to stain our country any further. Bob Mueller is totally conflicted, and his 17 Angry Democrats that are doing his dirty work are a disgrace to USA!" Trump wrote in a tweet.

Though Trump has long blasted Mueller's probe as a "witch hunt," GOP senators have yet to say they would support forcibly ending the investigation even as it inches closer to the November midterm elections.

GOP senators said on Wednesday that they would like for Mueller to start wrapping up his probe but believe he should be able to continue doing his job.

"I don't have any response on Trump's tweet ... but I do have something to say on the subject and that is: I've said for eight months just let Mueller do his job and he ought to get it done yesterday," said Sen. Chuck GrassleyChuck GrassleySenate Republicans press federal authorities for information on Texas synagogue hostage-taker Small ranchers say Biden letting them get squeezed These Senate seats are up for election in 2022 MORE (R-Iowa), the chairman of the Judiciary Committee.

Sen. Susan CollinsSusan Margaret CollinsClyburn predicts Supreme Court contender J. Michelle Childs would get GOP votes The names to know as Biden mulls Breyer's replacement No. 3 Senate Democrat says Biden should tap Black woman for Supreme Court MORE (R-Maine), in some of the strongest rhetoric from a GOP senator, called Trump's tweet "inappropriate." Corker, meanwhile, warned that there would be "chaos" if Trump had Mueller fired.

"I think the president understands that everything would come to stop and it would cause all kinds of other problems for him I think. So it would be a really foolish thing" to fire Mueller, Corker said.

The Senate Judiciary Committee passed legislation earlier this year that would codify that only a senior Justice Department official could fire Mueller and give him the ability to review his firing.

But that legislation faces entrenched opposition from GOP leadership who argue the bill isn't needed because Mueller won't be fired and the Trump would never sign the bill.

Corker added on Wednesday that if the bill was brought to the Senate floor he would support it, but added, "I doubt that it is, to be honest."