"This is designed for us to set an example by cutting our own budget and not just asking other people to tighten their belts," said Nelson on the Senate floor. "Congress shouldn’t be exempt from the pain."

Sen. Roger WickerRoger Frederick WickerGOP senators introduce bill to prevent family separations at border Overnight Defense: States pull National Guard troops over family separation policy | Senators question pick for Afghan commander | US leaves UN Human Rights Council Senators question Afghanistan commander nominee on turning around 17-year war MORE (R-Miss.) agreed that cutting 5 percent would be a "small but symbolic step."

Nelson's amendment is one of several that have been tacked on to the Small Business Administration authorization bill have nothing to do with the underlying legislation.