His first reelection race would be in 2010, a red wave year. Despite that he would narrowly win due to his massive popularity in Chicago, though the state total goes to him by just around two percentage points. In 2016, he would win reelection as well, that is if he declines a presidential run of his own. As for what he does in the senate, we can take a guess on the committees he was apart of in OTL. Senator Obama would focus mostly on environmentalism (becoming one of the vocal Democrats in regards to global warming prevention), healthcare expansion, education reform, foreign affairs, and veterans benefits. The right would still hate him but not to the extent in OTL due to a somewhat lower profile. He would still be very visible in the public eye though due to being the sole African-American senator, and thus speak of issues that the community cares about (another black senator probably wouldn't be elected until 2012).