A new poll says that Republican presidential candidate Mitt Romney has a slight edge over Rick Santorum in Illinois.
The Chicago Tribune/WGN-TV poll published Sunday shows 35 percent of likely GOP voters favored Romney to Santorum 35 percent to 31 percent.
Newt Gingrich had 12 percent, Texas Congressman Ron Paul had 7 percent and 16 percent were undecided.
However, the poll says 46 percent of voters said they could still change their minds before the state's March 20 primary election.
The poll of 600 registered likely voters was conducted March 7-9. It has an error margin of 4 percentage points.
The poll shows that Romney is doing well in Chicago's suburbs, but Santorum has a 35 percent to 29 percent advantage in the 96 counties outside the Chicago area.