<Tr> <Td> Vice News / SurveyMonkey </Td> <Td> 000000002017 - 12 - 05 - 0000 December 5, 2017 </Td> <Td> 000000002017 - 12 - 06 - 0000 December 6, 2017 </Td> <Td> 39% </Td> <Td> 39 </Td> <Td> 56% </Td> <Td> 56 </Td> <Td> </Td> </Tr> <Tr> <Td> Reuters / Ipsos </Td> <Td> 000000002017 - 12 - 03 - 0000 December 3, 2017 </Td> <Td> 000000002017 - 12 - 07 - 0000 December 7, 2017 </Td> <Td> 31% </Td> <Td> 31 </Td> <Td> 49% </Td> <Td> 49 </Td> <Td> </Td> </Tr> <Tr> <Td> CBS News </Td> <Td> 000000002017 - 12 - 03 - 0000 December 3, 2017 </Td> <Td> 000000002017 - 12 - 05 - 0000 December 5, 2017 </Td> <Td> 35% </Td> <Td> 35 </Td> <Td> 53% </Td> <Td> 53 </Td> <Td> </Td> </Tr> <Tr> <Td> Gallup </Td> <Td> 000000002017 - 12 - 01 - 0000 December 1, 2017 </Td> <Td> 000000002017 - 12 - 02 - 0000 December 2, 2017 </Td> <Td> 29% </Td> <Td> 29 </Td> <Td> 56% </Td> <Td> 56 </Td> <Td> </Td> </Tr>

When did the new tax plan take effect