In our system, the President conducts foreign policy "with the advice and consent of the Congress". There won't be any US embassy in "Palestine" if Congress refuses to fund it. And Congress this week is now close to cutting off all funds to Abbas if he continuesto refuse to negotiate, because PLO talking to Israel and recognizing Israel is the only basis in US law that the President gets money to give them in the first place. Not a damn thing Obama can do about it if Congress says "NO", unless he wants to get himselfimpeached.
Saudi-backed forces advance on rebel-held province in Yemen (DPA)