Will It Matter? Searching for Clues in the Polls About a Trump Conviction.

For almost a decade, Donald J. Trump has done, said and survived things that would have doomed any other politician.

He even saw his support increase after four sets of criminal indictments last year — including the charges for falsifying business records that he was ultimately found guilty of Thursday.

The polls cannot tell us how voters will respond to the unprecedented verdict. Most voters weren’t even paying close attention to the trial, and asking voters about hypotheticals is always fraught. With his track record of political resilience, there’s surely little reason to expect his loyal MAGA base to suddenly collapse after a guilty verdict — or even imprisonment. It’s possible he won’t lose any support at all.

But in a close election in a closely divided country, any losses could be pivotal. While Mr. Trump has survived many controversies, he has also suffered a political penalty for his conduct. He did lose re-election, after all. And this cycle, there is one reason to wonder whether Mr. Trump might now be more vulnerable: He depends on the support of many young and nonwhite voters who haven’t voted for him in the past, and who might not prove as loyal as those who have stood by his side from the start.

In the last six months, many pollsters have asked voters to consider the hypothetical scenario where Mr. Trump was convicted at trial. It’s important to emphasize that these poll results shouldn’t be interpreted as simulations of how voters will behave after a real-world conviction. The questions don’t replicate how voters will react to the full context and facts of the case, or to statements of support from Republicans, or to the coverage on Fox News. Instead, they put a hypothetical conviction right in the face of the respondent.

Nonetheless, the results do show that a meaningful number of Mr. Trump’s supporters are understandably uncomfortable with the idea of supporting a felon. This is a line that Mr. Trump hasn’t crossed before, and a sliver of his supporters were even willing to tell a pollster they would vote for President Biden if Mr. Trump were found guilty.