Obama can thank the media for it not being significantly higher.

Via Rasmussen:

Voters are more likely to believe Mitt Romney’s views are in the mainstream than extreme, but are evenly divided on President Obama’s views.

The latest Rasmussen Reports national telephone survey of Likely Voters shows that 51% regard Romney’s views as mainstream. Thirty-seven percent (37%) say it would be more accurate to describe the presumptive GOP nominee’s views as extreme.

Views of the president are more evenly divided. While 44% believe it’s accurate to describe President Obama’s views as mainstream, 47% describe his views as extreme.