GOP presidential candidates are hitting the pavement in Illinois this week, vying for support in next Tuesday's primary election. 

Rick Santorum will hold a "Rally for Rick" in Effingham tomorrow at John Boos and Company at 2 p.m.  He'll also make stops in Mt. Vernon and Herrin. 

Mitt Romney spoke before a large crowd in Rosemont this morning and Ron Paul held a town hall in Champaign earlier this week.