DES MOINES, Iowa - With only eight votes separating them, Mitt Romney and Rick Santorum have proved after last night’s Iowa primary vote that the battle between moderate and conservative forces in the Republican party will continue to both define and divide the GOP 2012 caucuses. Ron Paul landed in a close third place, while U.S. Rep. Michele Bachmann, one of the strongest social conservatives in the race, announced the end of her candidacy Wednesday after coming in at sixth place. In the final count released this morning, Santorum’s 30,007 (24.54%) votes were defeated by 30,015 (24.55%) cast for the...