 He has also contributed to Restore our Future, a super PAC supporting Mitt Romney.His contributions in support of Romney totaled $16.5 million, making him the year's third-largest Republican donor, behind Sheldon Adelson and Bob J. Perry.As of March, Simmons and Contran Corp. had given almost $18 million to conservative super PACs, the election's second single contributor after Sheldon Adelson, spread among all the major Republican candidates following the advice of Rove.