In May 2005, I was having a horrible time trying to secure a VA Loan to buy my first condo.... The Veterans' Administration had several things on their "files" about me that were patently untrue, and I had no idea where they came from. I had solid evidence to the contrary of everything the VA supposedly "had" on me.
After the voluminous phone calls, and the elevated blood pressure, I called Senator Obama's Chicago office. His administrative assistant in that office, asked me to fax a letter, with all the appropriate documentation to the office, and that it would receive immediate attention. Best I can remember, that was on a Tuesday.
Two days later, I received a telephone call from Senator Obama himself, asking me to explain a couple of details to him. He also served on the Veterans' Affairs Committee at the time (the main reason I contacted his office, by the way).
The following week, I got a call from his administrative assistant here in Chicago, saying that the issues I had raised had been resolved. She gave me the name and number of someone at the VA that I should contact to verify the resolution of the matters at hand.
I contacted the VA representative, and indeed, the issue had been rectified, and corrected at the Senator's request. My personal testimony.
DISCLAIMER: Long ago, I felt that Senator Obama should not run for the Presidency...and as of today, I have no plans to cast my ONE vote for him.