A bipartisan group of senators is preparing to revive legislation to protect special counsel Robert MuellerRobert (Bob) Swan MuellerThis week: Mueller dominates chaotic week on Capitol Hill Top Republican considered Mueller subpoena to box in Democrats Kamala Harris says her Justice Dept would have 'no choice' but to prosecute Trump for obstruction MORE from being fired. 

Sens. Christopher CoonsChristopher (Chris) Andrew CoonsDemocrats pledge to fight Trump detention policy during trip to border Trump nominees meet fiercest opposition from Warren, Sanders, Gillibrand Senate Democrats skipping Pence's border trip MORE (D-Del.), Thom TillisThomas (Thom) Roland TillisThe Hill's Morning Report — Trump applauds two-year budget deal with 0 billion spending hike Republicans scramble to contain Trump fallout McConnell says Trump is not a racist, but calls for better rhetoric MORE (R-N.C.), Cory BookerCory Anthony BookerBooker takes swipe at Biden criminal justice reform plan Democrats, advocacy groups urge Pompeo to abolish new 'unalienable rights' commission Biden announces plan to counteract mass incarceration MORE (D-N.J.) and Lindsey GrahamLindsey Olin GrahamGraham says he will call Papadopoulos to testify GOP group defends Mueller ahead of testimony The Hill's Morning Report — Mueller Time: Dems, GOP ready questions for high-stakes testimony MORE (R-S.C.) will reintroduce the legislation this week, spokespeople for Coons confirmed. 
 
The legislation protects Mueller, or any other special counsel, in the event he is fired by providing for an "expedited review" of the firing. If a court determines that it wasn't for "good cause," the special counsel would be reinstated.
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It would also codify Justice Department regulations that say only a senior department official could fire Mueller or another special counsel.
 
Republican backers of the legislation have said they don't believe President TrumpDonald John Trump5 things to know about Boris Johnson Conservatives erupt in outrage against budget deal Trump says Omar will help him win Minnesota MORE will fire Mueller, whom he has accused of leading a "witch hunt" against him, but that the legislation is good policy regardless of who is in the White House. 

Tillis said in a statement to The Associated Press, which first reported plans to reintroduce the bill this week, that he believes it "is true" that Trump won't fire Mueller. 

"However, I also believe this bipartisan legislation is good government policy with enduring value across the current and future administrations," Tillis said. 

House Democrats introduced similar legislation last week on the first day the party took back control of that chamber, arguing the bill was key to making sure Mueller's probe into the 2016 election continues unimpeded. Both acting Attorney General Matthew Whitaker and William Barr, Trump's pick to be attorney general, have been critical of the investigation.
 
Though Graham is taking over as Judiciary Committee chairman, the bill is unlikely to clear the Senate. GOP leadership is opposed to the bill and other Republican senators believe it is unconstitutional. 
 
 
Under the upper chamber's rules, senators can go to the floor to request a vote or passage of any bill or nomination. But any senator can block their requests.