The sample of 5,108 eligible U.S. voters participated from May 15 to June 15, 2019. They are members of USC Dornsife's Center for Economic and Social Research’s Understanding America Study (UAS) probability-based internet panel.
The poll was conducted online in respondents’ choice of English or Spanish. The overall margin of sampling error is +/- 2 percentage points for all U.S. eligible voters and +/- 3 for 2020 Democratic primary voters.
Information about the poll including methodology, question wording and results, as well as the archive of results of prior USC Dornsife/LA Times polls, are available online at bit.ly/USCPolls
About the poll
The USC Dornsife/LA Times poll is a partnership of The Los Angeles Times and two institutions of the USC Dornsife College of Letters, Arts and Sciences: the Center for the Political Future and the Center for Economic and Social Research. For more information about the Center for Economic and Social Research Understanding America Study internet panel, visit https://uasdata.usc.edu.