The Senate Judiciary Committee led by Sen. Chuck Grassley voted Thursday to approve legislation that would protect special counsel Robert Mueller from being fired by the President.

According to the Hill, the panel approved the decision in a 14-7 vote that split Republican members down the middle. In all, four GOP senators supported the legislation, including Sens. Tillis, Graham, Grassley, and Flake.

The bill was opposed by Sens. Hatch, Lee, Cornyn, Crapo, Sasse, Kennedy, and Cruz.

“The vote marks the first time Congress has advanced legislation to formally protect Mueller from being fired by President Trump, who has railed against him in public and reportedly talked in private of dismissing him,” writes the Hill.

The proposal now rests in the hands of Senate Majority Leader Mitch McConnell, who will decide if and when the legislation receives a full vote on the Senate floor.

“I’m the one who decides what we take to the floor, that’s my responsibility as the majority leader, and we will not be having this on the floor of the Senate,” McConnell said earlier this month.