I'm a pretty big Obama critic, for a variety of reasons, but that's entirely untrue. In 2008, Obama largely ran on the reconciliation a quasi-outsider could provide to a nation reeling from the divisions of Bush's second term—on actually being that "uniter, not divider" Bush had promised to be—and he spent a lot of the first half of his first term trying pretty desperately to work "across the aisle" and with Republicans, sometimes to the detriment of his agenda and his constituency. You can attribute blame for that failure of rapprochement to his administration, or to an utterly recalcitrant opposition, or to both*, but the initial effort was certainly there.
*(Pro-tip: it's always both.)