I sent the following message to barackobama.com.
Dear Mr. Obama:
Your behavior is a terrible disappointment. I donated $100 to your campaign and I was going to give more, but not anymore. For voting for retroactive immunity for telecomms, I pledge not to donate any more funds. I expected you to have more respect for the rule of law and for the constitution. You should have been the leader of the opposition to this!
Also: after promising to make use of the public financing system, you spun your reversal as some kind of sacrifice and an indicator of your greatness. I am not impressed.
I came to like you when I read "Audacity of Hope", but when I see you behaving like any other politician, it's like a slap in the face. Good luck in the election, and may you stop to look back on your principles when you arrive in the White House.