<Table> <Tr> <Th> Poll source </Th> <Th> Sample size </Th> <Th> Date (s) </Th> <Th> Margin of error </Th> <Td> Donald Trump </Td> <Td> Elizabeth Warren </Td> <Td> Undecided </Td> </Tr> <Tr> <Td> SurveyUSA </Td> <Td> 909 </Td> <Td> January 7--9, 2018 </Td> <Td> ± 3.3% </Td> <Td> 32% </Td> <Td> 53% </Td> <Td> 14% </Td> </Tr> </Table> <Tr> <Th> Poll source </Th> <Th> Sample size </Th> <Th> Date (s) </Th> <Th> Margin of error </Th> <Td> Donald Trump </Td> <Td> Elizabeth Warren </Td> <Td> Undecided </Td> </Tr> <Tr> <Td> SurveyUSA </Td> <Td> 909 </Td> <Td> January 7--9, 2018 </Td> <Td> ± 3.3% </Td> <Td> 32% </Td> <Td> 53% </Td> <Td> 14% </Td> </Tr> <P> Trump vs. Winfrey </P>

Who is running for us president in 2020