ASI’s latest bumper sticker poll has predicted that Vermont senator Bernie Sanders will win tomorrow’s Super Tuesday primaries in five of the biggest states in play by delegate number.

Super Tuesday is the most important day of the Democratic primary campaign so far with 1,357 delegates at stake; that’s almost a third of all delegates across the country.

Among voters in California, which has the most delegates of any state at 415, 34% would put a “Bernie” bumper sticker on their cars, followed by 27% who favor Joe Biden (who won the most recent primary in South Carolina last Thursday). Nearly 40% of Texans favor Sanders, followed by 23% for Biden. In Colorado, 34% prefer Sanders, then Biden at 25%; in Massachusetts, 32% went for Sanders and 24% for Elizabeth Warren; and in Virginia, 28% chose Sanders, followed by 27% for Biden.

Last week, 24% of South Carolinians chose Biden in the bumper sticker poll, followed by Pete Buttigieg at 17% (who has since dropped out of the race) and 16% for Sanders. On Monday, the day before Super Tuesday, candidate Amy Klobuchar announced that she would be ending her campaign and supporting Biden.

“I’m fairly confident that Sanders will win all of the states on Super Tuesday,” said Nathaniel Kucsma, ASI’s executive director of research and corporate marketing. “One thing that I can say with certainty is that Sanders will receive the most votes tomorrow, but he’s very unlikely to receive the majority of the votes in each of these states.”

ASI’s four bumper sticker polls so far — in South Carolina, Nevada, New Hampshire and Iowa — have been mostly accurate in predicting the primary winner in each state, except in New Hampshire. The poll predicted Buttigieg would take it, but Sanders managed to eke out a win.

Between Feb. 27 and March 1, ASI Market Research used the Google Consumer Survey network to survey more than 1,970 Democratic voters from California, Texas, Colorado, Massachusetts and Virginia with the single-question poll.