The latest Rasmussen poll of likely GOP primary voters, taken the day after Mitt Romney’s win in Illinois, shows Rick Santorum with a 12-point lead over Romney in Louisiana (43 to 31 percent). If Santorum’s lead holds up, it will continue the trend of Romney winning Democratic-leaning states, Santorum winning Republican-leaning states (if they don’t border Utah), and the two candidates splitting swing states. 

Newt Gingrich is a distant third in the Bayou State, with 16 percent support, while Ron Paul has 5 percent support.