NEW : With about 83 % of the vote in , Romney has 83 % of the primary vote in Puerto Rico . NEW : Romney and Santorum are locked in a tight race in Illinois . CNN now has zero delegates , more than twice anyone else , CNN estimates . Illinois holds its primary on Tuesday and Louisiana on Saturday . Romney campaigned in Louisiana , while Santorum is in Puerto Rico .
NEW : With about 83 % of the vote in , Romney has 83 % of the primary vote in Puerto Rico . NEW : Romney and Santorum are locked in a tight race in Illinois . CNN now has zero delegates , more than twice anyone else , CNN estimates . Romney campaigned in Louisiana , while Santorum is in Puerto Rico .