DONALD'S CEILING IS 44%, WITH NO FLOOR:

Data for Progress used the Lucid survey sampling platform to test three different versions of a Sanders and Trump polling matchup question. The survey was in the field from January 9 to January 19 of 2020 and ran these three polls:

No information: "If the 2020 U.S. Presidential election was held today, who would you vote for if the candidates were Bernie Sanders and Donald Trump?"

Partisan cues: "If the 2020 U.S. Presidential election was held today, who would you vote for if the candidates were Democrat Bernie Sanders and Republican Donald Trump?"

Socialists and billionaires: "If the 2020 U.S. Presidential election was held today, who would you vote for if the candidates were Democrat Bernie Sanders, who wants to tax the billionaire class to help the working class and Republican Donald Trump, who says Sanders is a socialist who supports a government takeover of healthcare and open borders?"

In all three versions, Bernie beats Trump, albeit by slightly different margins. Sanders does best in the version of the question that provides no information at all. Giving the candidates their partisan labels increases Sanders's lead somewhat, and giving the hypothetical messages leaves Sanders with a lead that's somewhere in between the two other scenarios.

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