“There are more [shy Trump voters] than last time and it’s not even a contest,” Cahaly said, adding that it’s “quite possible” that the polling industry is headed for a catastrophic miss in 2020.

FiveThirtyEight’s Nate Silver and Cook Political Report editor Dave Wasserman are among those deeply skeptical of Cahaly’s polling.

Both have dug into the crosstabs of Trafalgar polls and pointed to questionable breakdowns as evidence Trafalgar doesn’t know what it’s doing. For instance, the crosstabs in a Michigan poll, which are no longer online, appeared to show Trump leading Biden by 8 points among young voters, a Democratic stronghold.

“[Trafalgar] doesn’t disclose their ‘proprietary digital methods’ so I can’t really evaluate what they’re doing,” said Jon McHenry, a Republican pollster with North Star Opinion Research. “They’re far enough out on a limb that a year from now, we’ll all remember if they were very right or very wrong.”