Biden is up over Trump by 51% to 42% among registered voters in Wisconsin. The President also trails Sen. Bernie Sanders of Vermont, who tops Trump 48% to 44%, just barely outside the margin of error.
Trump is tied against Sens. Elizabeth Warren of Massachusetts (45% each) and Kamala Harris of California (44% each).
Numbers this far out from a general election are hard to read, and could change between now and November 2020. They should be thought of as a snapshot in time rather than a predictor of the future.
Among the Democratic candidates, Biden leads the pack with 28% of registered Democrats, Democratic-leaning independents and independents who don’t lean toward either party saying he was their first choice, followed by 20% for Sanders and 17% for Warren. Sanders beat out former Secretary of State Hillary Clinton in the 2016 Wisconsin Democratic primary, 57% to 43%.