Barack Obama Lands Another Important Endorsement, This Time It's 9/11 Commission Co-Chair, Lee Hamilton.

Read about this HUGE endorsement. Here are excerpts:

Hamilton, once mentioned as a possible running mate for Bill Clinton, told the AP he believed Obama was the candidate most likely to unite the country.

"I begin by asking myself what kind of leadership the country needs at this juncture and I think, for me at least, the answer is that you want a candidate that will try to bring together a country that is very evenly divided, a country in which partisanship has been very sharp and to try to get a candidate who will create a new sense of national unity and will try to transcend the divisions within the country," he said.

Hamilton spent 34 years in Congress representing a southern Indiana district. He served as chairman of the House Foreign Affairs and Intelligence committees, and was a Democratic leader on international relations before retiring in 1999.