American Unity PAC is “focused exclusively on protecting and promoting [Republican] candidates for U.S. House and U.S. Senate” who support LGBTQ rights. The Super PAC and its associated policy wing, American Unity Fund, are financed by a small group of donors led by financial moguls Paul Singer and Seth Klarman. According to FEC records, Singer has given $5.7 million to the PAC since its founding in 2012.
In 2014, American Unity PAC made $4.8 million in independent expenditures, with over 95% occurring in U.S. House races. The group played a role both in Republican primaries – with its assistance to Rep. Richard Hanna’s (R-NY) successful bid for re-nomination described as “decisive” – and in general election contests.
As of December 31, 2015, American Unity PAC reported that it held $1.9 million cash-on-hand. In April, it spent over $250,000 to help Republican House candidate Ben West in his primary. West lost by 37 percentage points.
 “American Unity PAC – Independent Expenditures – 2014 Cycle.” The Center for Responsive Politics, accessed 12/10/15
 “Hedge fund billionaire helps swing primary for pro-gay Republican.” Zeke Miller, Time, 06/28/14