Dozens of former law clerks of federal appeals judge David Sentelle have written to the Senate calling for quick confirmation of their onetime colleague Judge Neil Gorsuch to the Supreme Court.

“We work for law firms, public interest groups, private companies, government entities, and academic institutions. What unites us is our firm conviction that Judge Gorsuch is eminently qualified to serve on the nation’s highest court,” wrote the 60 Sentelle clerks.

The clerks said they hailed from different points on the political spectrum but all endorsed Gorsuch, who clerked for Sentelle on the U.S. Court of Appeals for the D.C. Circuit from 1991 to 1992.

Gorsuch was nominated by President Donald Trump in January to fill the high court position, left vacant by the death of Justice Antonin Scalia last year. He’s currently a federal appeals court judge on the 10th Circuit, based out of Colorado.

[What You Likely Won’t Hear From Gorsuch at Hearings, and Why]

The clerks sent the letter to Senate Judiciary Chairman Charles E. Grassley and ranking member Dianne Feinstein ahead of the upcoming confirmation hearings for Gorsuch, which begin on Monday, March 20. 

The letter, dated March 15, was provided first to Roll Call. 

Some Democrats have already signaled their opposition to his nomination, although the exact number is as yet unclear. 

[Senate Democrats Preview Their Case Against Gorsuch]

“Of the many lessons we learned while clerking for Judge Sentelle, the most important was about the judicial role. A judge’s job is to interpret the law as written, fairly and impartially, not manipulate it to advance his or her own agenda. Judge Gorsuch obviously took the lesson to heart, for this is exactly the kind of judge he’s been on the 10th Circuit,” the clerks wrote. “We have no doubt that he’ll be the same kind of justice on the Supreme Court.”