[ansel12]

At the federal level, marriage issues and abortion also have to be decided on, for instance in the military, federal employment and immigration and foreign policy.

Never support a social liberal, non God fearing candidate at ANY level of office, because not only will he be pushing left wing social politics, but he might someday reach the Congress, or Senate, or Presidency and be making federal policy.

[OneWingedShark]

At the federal level, marriage issues […] for instance in the military, federal employment

Not really; they could adopt a no benefits policy; or a benefit to one designated survivor for 20-years policy.

and abortion also have to be decided on,

It was already decided federally: Roe v. Wade.

and immigration and foreign policy.

This is about the only one that actually is justified under the Constitution; congress has the authority to make a uniform law for immigration.