CHICAGO The mayor, the president and Oprah Winfrey may hope to return to Chicago from Copenhagen with the 2016 Olympic Games, but some around town hope the International Olympic Committee deems the Second City the second city.

As in second to Rio de Janeiro. Or Tokyo. Or Madrid.

The opposition is not as visible as the We Back the Bid signs plastered across town. But in a city all too familiar with stories of public corruption and problems with public services, there is serious concern the games can only mean more troubles and bills for residents.

I know its going to cost us money somehow, said Joseph Patrick, a 51-year-old stay-at-home dad. The government doesnt have a job, (so) the only place they can get money is from us.

A Web site Chicagoans forrio.com is the talk of the town and features the game Match the Olympic host with its estimated budget overrun. About 170 protesters marched outside City Hall on Tuesday night, many insisting that no matter what organizers say, the games will push people from their homes, lead to more corruption and raise taxes.

I dont believe anything the city and the 2016 committee says, said Larry Rivkin, who grew up in Chicago.

At least one person was later arrested for trying to interfere with workers erecting Olympic symbols in a downtown plaza.

Its not that the bid does not enjoy wide support. Laid-off laborer Dennis Ries, 45, said the Olympics would bring jobs. Resident Molly Mason, 53, sees the games enhancing tourism and public transportation.

Theres no downside, only upside, Mason said.

A poll released this month by the Chicago Tribune showed residents almost evenly split, with 47 percent in favor of the bid and 45 percent against; thats a drop from the 2-to-1 support the newspaper found in a February poll.