The four Republicans running for governor of Illinois will debate tonight in Chicago.
The hike is due to expire at the end of next year. Without it, the state will lose about $5 billion in revenue each year.
State Sen. Bill Brady officially joined the race for the Republican nomination for Illinois governor.
Several Republicans considering runs for the 2014 governor’s race have criticized Gov. Pat Quinn’s State of the State address for a lack of specifics and little attention to Illinois’ strained finances.