A proposal by Democrats that would have barred the sale of firearms to all individuals on the terror watch list failed to advance in a 47-53 vote. The Republican amendment, which would have enabled the justice department to delay an individual on the FBI terror watch list from completing a gun purchase for a period of 72 hours, was voted down 53-47. The Republican plan, backed by the NRA, would have required the attorney general to prove to a judge that there was probable cause for the firearm sale to be denied.