"Some people have hopes of passing amendments, but it's not going to happen. Congress can't pass simple things, let alone that. So anybody that's making that an issue is doing it for political reasons. The Supreme Court ruled on it." - Donald Trump, after the Obergefell vs. Hodges decision.
That's not support. That's political pragmatism. I am an opponent of federally enforced same-sex marriage, but ultimately, if that's the way the Supremes (incorrectly) interpreted the Constitution, it's the law of the land and should be treated as such.