Sen. John McCain blasted his colleagues for making the bill clear procedural hurdles.
Graham said he's taking "a pass" on the presidential race.
Republican Rep. Ron DeSantis has issued a tongue-in-cheek open letter to Sanders.
The Democratic leader said he would "yell and scream to stop that."
Lawmakers are rushing a slate of bills before leaving for a weeklong recess.
Supporters of registering women see it as their last chance to get legislation to Obama.
McCain began his pitch for more defense funding with a letter to colleagues Friday.
Sen. Joe Manchin says out-of-state groups are trying to misrepresent his position.
Rep. Mark Takai is fighting pancreatic cancer.
They warned that the administration can't enforce the guidance.