(HUFFINGTON POST) — He calls Chicago home, with a house on the city’s South Side. He represented the state of Illinois in Congress, and now the President of the United States is a Chicago Bulls fan. Still, Illinois’ Republican voters aren’t too sure about this Barack Obama guy.

Public Policy Polling surveyed 506 likely GOP primary voters March 17 and 18, and found that 39 percent of them believe that Obama is a Muslim. There are still quite a few “birthers” in the state as well, as 36 percent of GOP voters believe the president was not born in the United States. An overwhelming 89 percent of the GOP voters disapproved of Obama — and more than half disapproved of the city of Chicago itself.

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