Sen. Barbara BoxerBarbara Levy BoxerThe ‘bang for the buck’ theory fueling Trump’s infrastructure plan Kamala Harris endorses Gavin Newsom for California governor Dems face hard choice for State of the Union response MORE (D-Calif.) the bill’s chief co-sponsor, argued along with Sen. Chuck GrassleyCharles (Chuck) Ernest GrassleyGrassley renews complaints about History Channel Republicans divided over legislation protecting Mueller The Hill's Morning Report: Inside the Comey memos MORE (R-Iowa) on Thursday that it is inappropriate for an employee serving the executive branch to make more than the commander in chief.

“Taxpayers should not be on the hook for exorbitant government contractor salaries, Boxer said.

Grassley also spun it as a “good government amendment.

“We can’t afford to waste increasingly limited defense dollars, he said. “This amendment goes after an unnecessary expenditure by containing runaway spending in a type of contract used extensively by the Department of Defense. 

A news release from Boxer’s office noted that the cap passed under the amendment is still double the $200,000 salary that the president’s Cabinet secretaries earn.  

The amendment cleared the upper chamber by unanimous consent Thursday, en bloc, with several other amendments.