 On May 27, 2010, Donnelly voted against repealing Don't Ask, Don't Tell after military review and certification, though the next day, he voted for the 2010-2011 Defense Appropriation Authorizations bill, which included a provision repealing Don't Ask Don't Tell.In December 2010, Donnelly voted for the Don't Ask, Don't Tell Repeal Act of 2010.He was one of 17 Democratic Representatives to vote for H Amdt 1416 the Prohibits Use of Funds in Contravention of the Defense of Marriage Act in July 2012.