The debate over who really won the Hispanic vote in Nevada, Hillary Clinton or Bernie Sanders, continues today. As I wrote Sunday, I think the balance of evidence points to Mrs. Clinton: Her strength in the heavily Hispanic areas of Las Vegas and among Hispanic voters in most national polls is, to my mind, much stronger evidence than an entrance/exit poll sample of 213 Hispanic respondents in 25 precincts.

The debate is important to both campaigns. The Sanders side is eager to promote that its message is connecting beyond white voters, where it has already had impressive success. The Clinton campaign would like to be able to say that its nonwhite coalition is holding together.

New data from the entrance-exit poll gives additional reason to doubt the conclusion that Mr. Sanders won the Hispanic vote by eight percentage points. In a defense of the poll, Gary Langer of ABC News focused on the age of the Hispanic vote. He noted that 38 percent of Hispanic voters were aged 18 to 29, according to the poll, compared with just 13 percent of non-Hispanic voters. Young voters, Hispanic or otherwise, appeared to break overwhelmingly for Mr. Sanders.

This helps explains why the poll had such a pro-Sanders vote, but it doesn’t prove the published results were right. In fact, it’s an unrealistic number that helps explain how the poll could have been off.