Republican Comptroller Judy Baar Topinka on Sunday threw her support behind a city casino.
She is urging the general assembly to authorize one before the end of the legislative session on May 31st.
"World-class cities have casinos," said Topinka. "Having a casino here would help with tourism, with jobs - it would certainly put some money back in the till both for the city as well as the state, but I think you have to be responsible as well."
Earlier this week, Mayor Rahm Emanuel expressed support for a Chicago casino and Governor Pat Quinn has said that he is willing to discuss the issue.