"This is a common-sense amendment that will secure disability payments for veterans and make sure we are not paying for disabilities that are not truly service-related," said Coburn. 

Sen. Patty MurrayPatricia (Patty) Lynn MurrayCDC director to miss fourth hearing because of potential ethics issues Week ahead: Lawmakers near deal on children's health funding Ryan suggests room for bipartisanship on ObamaCare MORE (D-Wash.) countered that injuries caused by herbicides like Agent Orange were too difficult to track among former members of the military in order to justify such stringent standards.

“Our military did a miserable job of tracking these exposures," said Murray. "No veteran is going to be able to tell you when or much of this poison, Agent Orange, they inhaled.”

The Senate voted 69 to 30 to table Coburn’s amendment. 

An amendment offered by Sen. Kelly AyotteKelly Ann AyotteLessons from Alabama: GOP, throw out the old playbook The Hill's 12:30 Report Explaining Democratic victories: It’s gun violence, stupid MORE (R-N.H.) to ensure that “wounded warriors” get the benefits of next-generation advanced prosthetics in a timely fashion and an amendment offered by Sen. Barbara BoxerBarbara Levy BoxerDems face hard choice for State of the Union response Billionaire Steyer to push for Dem House push Billionaire Steyer announces million for Dem House push MORE (D-Calif.) to order a study on the infrastructure of Department of Defense schools were both agreed to by unanimous consent.   

Republican Sens. Tom CoburnThomas (Tom) Allen CoburnRepublicans in Congress shouldn't try to bring back earmarks Republicans should know reviving earmarks is a political nightmare Former GOP senator: Trump has a personality disorder MORE (Okla.) and Bob CorkerRobert (Bob) Phillips CorkerSenate campaign fundraising reports roll in Congress should take the lead on reworking a successful Iran deal North Korea tensions ease ahead of Winter Olympics MORE (Tenn.) both voted against the underlying legislation. 

The Senate is expected to now move to the House GOP's legislation to cut and cap federal spending while adding a balanced-budget amendment to the Constitution.