The vote was 54-46, with supporters falling six votes short of the required 60-vote threshold.

Read more: http://www.foxnews.com/politics/2013...#ixzz2QkxbJmHR

The Senate is proceeding to several other amendments, but the failure of the background check proposal authored by Sens. Joe Manchin, D-W.Va., and Pat Toomey, R-Pa., imperils the entire legislation.