Led by Iowa’s U.S. Sen. Chuck Grassley, every Republican on the Senate Judiciary Committee has signed a letter sent to Republican Majority Leader Mitch McConnell indicating they will not hold a hearing on any Supreme Court nomination made by President Obama.

“Given the particular circumstances under which this vacancy arises, we wish to inform you of our intention to exercise our constitutional authority to withhold consent on any nominee to the Supreme Court submitted by this President to fill Justice Scalia’s vacancy. Because our decision is based on constitutional principle and born of a necessity to protect the will of the American people, this Committee will not hold hearings on any Supreme Court nominee until after our next President is sworn in on January 20, 2017,” the committee wrote in the letter.

Grassley has also pointed in recent days to a speech given by Vice President Joe Biden in the 1990s, where he also argued against confirming a justice in a presidential election year.

Obama said he intends to nominate a new justice and that the Senate should fulfill its constitutional duty to give the nominee full consideration and a vote.

“Over the last few days, much has been written about the constitutional power to fill Supreme Court vacancies, a great deal of it inaccurate,” the judiciary committee wrote. “Article II, Section 2 of the Constitution is clear.  The President may nominate judges of the Supreme Court. But the power to grant, or withhold, consent to such nominees rests exclusively with the United States Senate.”

The full text of the letter can be seen below:

Along with Grassley, the letter is signed by U.S. Sens. Orrin Hatch, R-Utah, Jeff Sessions, R-Ala., Lindsey Graham, R-S.C., John Cornyn, R-Texas, Mike Lee, R-Utah, Ted Cruz, R-Texas, Jeff Flake, R-Ariz., David Vitter, R-La., David Perdue, R-Ga., and Thom Tillis, R-N.C.

The fight over nominating a new Supreme Court Justice comes after the death of Antonin Scalia last week.