CHICAGO (AP) — Republican Bruce Rauner and Democratic Gov. Pat Quinn will debate for a second time as they battle to become Illinois’ next governor.

The candidates are scheduled to meet Tuesday night at Chicago’s DuSable Museum of African American History. The debate is sponsored by the Chicago Urban League and the Business Leadership Council. It’s expected to focus on issues important to African American voters.

Black voters in Chicago and its suburbs have been credited with helping Quinn to a narrow victory in 2010. Rauner has been aggressively trying to win over those voters in advance of the Nov. 4 election.

Quinn, of Chicago, is seeking his second full term. Rauner is a Winnetka businessman and first-time candidate.

Tuesday’s debate will be broadcast on WBBM television and radio.

A new poll in the Governor’s race shows the incumbent with a slight lead.

The poll from the Chicago Sun-Times and We Ask America was conducted on Oct. 8 and shows Quinn with a 44.5 percent to 41 percent lead against Rauner. That’s within the poll’s margin of error, but it’s the latest of multiple polls that shows Quinn with a slight lead against Rauner heading into the November election.

Almost seven percent of poll respondents chose Libertarian candidate Chad Grimm. Seven-and-a-half percent chose undecided.

51 percent of downstate respondents said business knowledge is more important than political savvy, while those living in the city of Chicago favored a more political background in their candidate. More people viewed Rauner as the reformer candidate.

(Some material in this report is Copyright 2014 The Associated Press. All rights reserved.)