Don't know what he's so worried about. As it stands looking at the Intrade site Obama is leading Romney for some time now by 15 to 20 points with 3 months to go. Ever since Obama became the good guy with illegal immigrants, offering them citizenship he's got the minority vote locked up nicely. (as long as they actually vote) So it looks like a good bet that Obama will be re-elected anyway. UNLESS these markets crash & burn and it becomes crystal clear nothing has "changed" in the last 4 years. See Intrade link bottom left.