obamainfo.org
Obama Info
Updated 4/28/15

4. Jan. 3, 2005, to Nov. 16, 2008:

A. Joining & Leaving the U.S. Senate: 2005-2008

Barack Obama was elected to the United States Senate in November of 2004, where he served from Jan. 3, 2005, until Nov. 16, 2008, when he left after being elected President of the United States on Nov. 4, 2008.
Obama voted in four different sessions during his time as U.S. Senator.

Obama
Votes
109th Congress
1st Session
(2005)
109th Congress
2nd Session
(2006)
110th Congress
1st Session
(2007)
110th Congress
2nd Session
(2008)
Total Percent
Yea 275 187 172 47 681 52.39%
Nay 83 89 104 29 305 23.46%
Not Voting 8 3 166 137 314 24.15%
Total 366 279 442 213 1,300 100%

B. Books Published: 2006

In 2006, his book titled "The Audacity of Hope: Thoughts on Reclaiming the American Dream" was published.

Source documentation to the above:

1. New York Times Article, "Obama to Leave His Senate Seat," Nov. 13, 2008 (Accessed on 3-11-15)

2. United States Senate website (Accessed on 2-20-15)

3. Business Insider Article, "The 30 Most Famous Harvard Students Of All Time" (Accessed on 3-26-15)