Nationwide hypothetical polling for the 2020 United States presidential election

This is a list of nationwide public opinion polls that have been conducted relating to the general election for the 2020 United States presidential election. The persons named in the polls were declared candidates or received media speculation about their possible candidacy. If multiple versions of polls are provided, the version among likely voters (LV) is prioritized, then registered voters (RV), then adults (A).
Donald Trump vs. former Democratic candidates.
The following candidates are ordered by the date they withdrew or suspended their campaign.
Hypothetical polling.
The scenarios contained in the collapsed table below include candidates who have explicitly declined to run, candidates who have not been the subject of speculation regarding a potential candidacy, and generic Democratic and independent opponents. Hypotheticals are also included involving withdrawn candidates.