One thing he can do, as President of the United States, is get a few interested parties in the room and politely inform them that, as President, he does have the power to implement much of the Full Gay Communism agenda without Congress, so perhaps they'd prefer just passing his little bill instead.
Slightly more seriously, if Congress won't do the stuff he requires from them, there's still plenty he can reasonably and legitimately do without them. Maybe they'd make a deal about that.
