<Tr> <Td> Rothenberg Political Report </Td> <Td> 098! Lean D </Td> <Td> April 6, 2018 </Td> </Tr> <Tr> <Td> Sabato's Crystal Ball </Td> <Td> 098! Lean D </Td> <Td> April 5, 2018 </Td> </Tr> <Table> <Tr> <Th> Poll source </Th> <Th> Date (s) administered </Th> <Th> Sample size </Th> <Th> Margin of error </Th> <Th> Bruce Rauner (R) </Th> <Th> J.B. Pritzker (D) </Th> <Th> Undecided </Th> </Tr> <Tr> <Td> Ogden & Fry </Td> <Td> March 23, 2018 </Td> <Td> 667 </Td> <Td> ± 3.9% </Td> <Td> 28% </Td> <Td> 46% </Td> <Td> 26% </Td> </Tr> <Tr> <Td> Southern Illinois University </Td> <Td> February 19--25, 2018 </Td> <Td> 1,001 </Td> <Td> ± 3.0% </Td> <Td> 35% </Td> <Td> 50% </Td> <Td> 15% </Td> </Tr> <Tr> <Td> Public Policy Polling (D - Biss) </Td> <Td> February 5--6, 2018 </Td> <Td> 600 </Td> <Td> ± 3.3% </Td> <Td> 35% </Td> <Td> 48% </Td> <Td> 17% </Td> </Tr> <Tr> <Td> Ogden & Fry (R - Liberty Principles PAC) </Td> <Td> October 2, 2017 </Td> <Td> 517 </Td> <Td> ± 4.4% </Td> <Td> 30% </Td> <Td> 47% </Td> <Td> 23% </Td> </Tr> </Table> <Tr> <Th> Poll source </Th> <Th> Date (s) administered </Th> <Th> Sample size </Th> <Th> Margin of error </Th> <Th> Bruce Rauner (R) </Th> <Th> J.B. Pritzker (D) </Th> <Th> Undecided </Th> </Tr>

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