<Tr> <Td> Public Policy Polling </Td> <Td> 572 </Td> <Td> October 27--29, 2017 </Td> <Td> ± 4.1% </Td> <Td> 38% </Td> <Td> 56% </Td> <Td>--</Td> <Td> 6% </Td> </Tr> <Tr> <Td> Zogby Analytics </Td> <Td> 1,514 </Td> <Td> October 19--25, 2017 </Td> <Td> ± 2.5% </Td> <Td> 41% </Td> <Td> 50% </Td> <Td>--</Td> <Td> 9% </Td> </Tr> <Tr> <Td> Emerson College </Td> <Td> 820 </Td> <Td> October 12--14, 2017 </Td> <Td> ± 3.4% </Td> <Td> 42% </Td> <Td> 51% </Td> <Td>--</Td> <Td> 7% </Td> </Tr> <Tr> <Td> Public Policy Polling </Td> <Td> 865 </Td> <Td> September 22--25, 2017 </Td> <Td> ± 3.3% </Td> <Td> 40% </Td> <Td> 53% </Td> <Td>--</Td> <Td> 6% </Td> </Tr>

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