AP

Rick Santorum has surged nationally in the race for the 2012 Republican nomination after his three-state sweep this week, while Mitt Romney has lost ground among GOP primary voters. In addition, most GOP voters say the nomination race isn’t over — someone other than Romney could still win. That’s according to a Fox News poll released Friday.

The new poll was conducted over four nights this week — Monday through Thursday — so it provides a unique opportunity to compare Santorum’s support before and after his wins in Colorado, Minnesota and Missouri. And the results are striking. View full article »