The registered-voter poll was conducted across 10 states where Obama had small margins of victory in 2008 and are considered decisive in the upcoming presidential election.
These swing states fall into three regional tiers. The Rocky Mountain tier includes Colorado, Nevada and New Mexico. The Rust Belt tier includes Iowa, Ohio, Pennsylvania and Wisconsin. And the Dixie tier includes North Carolina, Florida and Virginia.
Across these states, Santorum performs about as well as Romney in matchups with the president.
The swing-state voters back Obama over Romney by 8 percentage points and Santorum by 9 points. Obama tops Paul by 12 points in the poll. Gingrich lags farthest behind Obama, as voters in these key states prefer the president to the former Speaker by 20 points. In the most recent Fox News national poll -- released Friday -- registered voters give Obama a 13-point edge over Gingrich.
Read more:
http://www.foxnews.com/politics/2012/02/15/fox-news-swing-state-poll-is-landscape-shifting/
