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Republican vice presidential nominee Rep. Paul Ryan told supporters Sunday in President Barack Obama's home state their contributions will help Republicans define the "very clear choice" for voters in the final weeks before Election Day.

Speaking at a fundraiser in suburban Chicago, Ryan, R-Wis., said the president is trying to "throw the kitchen sink" at GOP presidential candidate Mitt Romney and "muddle and confuse" voters. He also accused Obama of distorting Romney's record and said the president's campaign is outspending the GOP ticket on television advertising in some key states.

Ryan told attendees their support will "give us the resources we need to make sure he doesn't get away with it."

Tickets to the event at the Hyatt Regency O'Hare ranged from $2,500 to $75,800 per person. The campaign said about 260 people attended.