In September 1993, President Clinton presided over a handshake between Israeli Prime Minister Yitzhak Rabin and Palestine Liberation Organization Chairman Yasser Arafat on the White House lawn - the climax of a 'day of awe,' as the press described it.
Everyone who is critical of Israeli policy is deluged by crazed messages intended to flood their email system or, more insidiously, passwords are accessed and messages sent out under their name! I'm sure it's illegal. It's also an effort to undermine free speech.
In November 2008, the day of the presidential election, Israeli military forces invaded Gaza and killed half a dozen Hamas militants. Well, that was followed by a missile exchange for a couple of weeks in both directions.
The list of U.S. vetoes at the Security Council to protect Israeli aggression and occupation is huge.