No.
I personally updated on the question the moment Obama got elected and choose his cabinet. If he would have wanted to change something he would have chose a cabinet of people who wanted change. He didn't.
Politics is about people. Making someone like Rahm Emanuel his chief of staff is a clear sign about his intentions.
What is something you used to believe, preferably something concrete with direct or implied predictions, that you now know was dead wrong. Was your belief rational given what you knew and could know back then, or was it irrational, and why?
Edit: I feel like some of these are getting a bit glib and political. Please try to explain what false assumptions or biases were underlying your beliefs - be introspective - this is LW after all.