Mike Huckabee says that once he’s elected president he’ll block all federal recognition of same-sex marriage.

If the Congress decides that they want to pass enabling legislation, they could put it on my desk and I would veto it, and they can attempt to override it. That’s the process.

Yes, but since the chances of him becoming president of anything more than his HOA are nil, there’s not a lot to worry about unless you happen to be gay and live on the same cul-de-sac as he does.