Israel's toying with the morons who pass for 'leaders' in the United States is nothing new. The difference is that Obama is of above average intelligence and, most important, has something resembling a conscience. George W. Bush was profoundly stupid and a true believer, a true racist, a true advocate of a Crusade to defeat Islam.
Obama genuinely believes that Arabs, including Palestinians, have rights. That puts him in a bind never faced by Republicans or most Democrats. Like all but five or six Democrats, Obama's main mission is the balancing act of pleasing the most powerful people as much of the time as possible — Wall Street, health insurers, military contractors, etc. — the American Oligarchs. But because he has something like a conscience, he actually believes in something like democracy — and (rare among Americans) not just for Americans and other members of the Judeo-Christian Western tradition.
What to do then when Israel must be appeased to appease powerful interests in the US but justice actually requires saying no to the Middle East's leading war criminal state? What to do when Israel is doing exactly what it has been doing for over 40 years and has promised to continue doing?
Answer: Orwellify! Send two messages designed to sound like one (or maybe I mean one message designed to sound like two). Have Biden prate about the 'demographic threat' to Israel while uttering the word "Palestine" (a word that the New York Times still can't print, that Israelis still choke on). Have Hillary issue "strong language". Behind closed doors — in Israel, at the Brookings Institution's Saban Center, in speeches to AIPAC, etc. — promise that Israel will always enjoy the full backing of the US.
The Orwellian game is complicated these days by the growing delusion in Israel that Israel has a divine right to whatever the hell it demands. There's always been a minority that believed this, but that minority may now be a majority. Bad timing. The nation that enabled Israel's national psychosis is weakened worldwide by almost twenty years of war crimes in Iraq, absurd military expenditures, a steady economic decline and its own national psychoses.
An aside: Israel propagandist Martin Indyk has a piece on the Brookings website about Netanyahu's political calculus behind humiliating the pathetic Biden.