The situation now is akin to that of a bully who's authority has been challenged. The road downhill can go further. Having bent the rules of civilised discourse and political behaviour so far, there really isn't a safety net underneath them anymore.
They have made enough internal enemies (Paul O'Neill, Colin Powell, Joe Wilson, Lawrence Wilkerson, John McCain - to name just a few public instances) that first impeachment and later trial for war crimes in the Hague or treason at home are a real possibility. You can push people so far before even your nominal allies come and take you out. Think of Beria's fate. The entire Central Committee turned against him and he was executed after secret trial within two weeks.
"America was never innocent. We popped our cherry on the boat over and looked back with no regrets. You can't ascribe our fall from grace to any single event or set of circumstances. You can't lose what you lacked at conception.
"Mass-market nostalgia gets you hopped up for a past that never existed. Hagiography sanctifies shuck-and-jive politicians and reinvents their expedient gestures as moments of great moral weight. Our continuing narrative line is blurred past truth and hindsight. Only a reckless verisimilitude can set that line straight."
--James Ellroy, American Tabloid
Ensure a Free and Fair Election (Ban Paperless Voting Machines
"The basic tool for the manipulation of reality is the manipulation of words. If you can control the meaning of words, you can control the people who must use the words."