Via Bowers , we have this graph from Pollster.com : It shows Obama at 49.6% and McCain at 38.1%, whereas their chart without third parties has Obama at 46.4% and McCain at 42.3%. Given that the presence of third-party candidates seems to be benefiting Obama, Bowers thinks Obama should debate Nader and Barr to raise their profiles: The answer, I think, is just to debate them. Next month, Obama should propose including Barr, Nader and McKinney in one of the presidential debates. This seems like a no-brainer that would benefit Obama no matter what McCain said in response: Obama could frame the proposal as looking for discussion and solutions from all parties. Given that both he and McCain are trying to look bi- / post- / non-partisan, making this proposal is any easy way to back up that narrative. If McCain accepts, then he is once again following Obama's lead. If he declines, then he looks chicken, not to mention unwilling to debate people with a wide range of viewpoints. The thir