Republican Mitt Romney, visiting the stronghold of President Barack Obama, attacked his rival on the economy, his energy policies and other programs he says has held back the economic recovery.
Romney was in Chicago on Thursday to raise $3.3 million for his campaign.
As his party's presumptive nominee, Romney is engaged in an increasingly frantic race for campaign cash. Thursday's event took place at a hotel in the affluent Gold Coast neighborhood, just a few miles north of Obama's campaign headquarters.
In his speech to supporters, Romney said the president has failed to hold down unemployment and kept business owners from creating new jobs.
Earlier in the day, Romney and Obama laid out differing visions of how to spur America's sluggish economy in dueling speeches in Ohio.
Just after Romney leaves the state, President Obama and the first family will be arriving Friday night. The White House will not say what he's doing in town, but his visit coincides with the wedding of Laura Jarrett. She's the daughter of senior advisor, Valerie Jarrett.
A tent is already in place for the reception in the family's back yard in Hyde Park. They live just one block away from the Obama's.
The Associated Press contributed to this report.