Romney routs Santorum in GOP primary in Illinois

SCHAUMBURG, Ill. — Front-runner Mitt Rom­ney won the Illi­nois pri­mary with ease Tues­day night, defeat­ing Rick San­to­rum in yet another indus­trial state show­down and padding his already-formidable del­e­gate lead in the race for the Repub­li­can pres­i­den­tial nomination.