 However, after the Sandy Hook massacre in December 2012, Coburn (who had already announced he would not run for re-election) reversed himself and came out in support of universal background checks.Coburn partnered with Democratic members of the Senate such as Charles Schumer and Joe Manchin (to whose re-election campaign Coburn donated money) to determine what a universal background check measure should look like.However, these talks ultimately broke down, and in April 2013, Coburn was one of 46 senators to vote against the amendment in its final form, defeating its passage.