The union representing the State Department’s security officers has endorsed House Republicans’ call for a special panel to investigate the Obama administration’s handling of Benghazi.

J. Adler, the national president of the Federal Law Enforcement Officers Association, wrote to Rep. Frank Wolf (R-Va.) on Friday to call for a “bipartisan” select committee to be formed “immediately.” The union represents 26,000 federal officers, including those working for the State Department’s Bureau of Diplomatic Security.

“In supporting this measure, I would expect full bipartisan cooperation of both parties, and save the sticks and stones feuding for trivial matters,” Adler wrote. “We have grieving family members and a seriously injured DSS [Diplomatic Security Service] Special Agent that deserve the unwavering respect and commitment of our Congress. Our heroes didn’t take pause while confronting fatal risk. Congress should not take pause in confronting the need to properly investigate this matter.”