Here’s the strongest language I’ve found from Cruz on Obergefell:That's not true, though, in states like Alabama where the State Supreme Court's chief justice is advising clerks not to stop enforcing Alabama's constitutional prohibition against same-sex marriage. In that case, whether or not Federal enforcement will occur is really important. Keeping this pledge would allow states like Alabama to nullify the SCOTUS ruling, at least for the term of the President making the pledge.“My response to this decision was that it was illegitimate, it was lawless, it was utterly contrary to the Constitution and that we should fight to defend marriage on every front,” he said, before promoting constitutional amendments to overturn the ruling and put justices up for retention elections, along with legislation “to strip the federal courts of jurisdiction over challenges to marriage.”
Cruz conceded that none of his proposals are politically feasible at the moment. Once he is elected president, however, Cruz said he will make sure that “we will not use the federal government to enforce this lawless decision that is a usurpation of the authority of we the people in this country.” He also committed to only appoint Supreme Court justices who would not “legislate from the bench” like the justices did in Obergefell.
Okay, but the president’s role in enforcing or not enforcing Obergefell is unimportant. It’s a matter of the states enforcing it, since marriage is a creature of state law. Here again you find Cruz laying down rhetoric that makes it sound like he’s preparing to do something bold when really it’s just symbolism.
That's important because, for now, Roy Moore is a single guy using his office to hold the line. Everyone expects him to lose. If a President of the United States were to endorse his position, though, it could cause similar moves in other states as well. That could eventually put some teeth in the frequently-proclaimed Republican position that marriage is a state issue, not a Federal issue. A future President who disagreed would have to do more than remove Roy Moore. He or she would have to take on a bloc of states rejecting Federal jurisprudence. They might, or they might back down. If they did take on the bloc, they would do so from a relatively weakened position compared to the position that President Obama holds now.