Answer: A single special election with low turnout is very ¯\_(ツ)_/¯
I don't want to dismiss tonight's result as meaningless, because it's not. However, we should be careful not to over-interpret it as a signal for what could happen in November. My main reason for saying this? Turnout. ABC News's current expected vote projection is about 185,000 total voters. To put that in perspective, 271,000 voters cast ballots in the 2022 3rd District race in what was a high-turnout midterm (for the most part). And in 2020, 398,000 voters would've cast ballots for president in the 3rd District under its current lines, according to Daily Kos Elections' calculations. To be fair, the 2020 presidential race was the highest-turnout election in modern times, but despite the tepid excitement about a likely Biden-Trump rematch, I anticipate another relatively high-turnout presidential contest. So there will be a lot more voters voting in November than in a February special election that also featured inclement weather. Just how the multitude of more marginally-engaged voters who show up in 9 months respond to the electoral environment is an open question.
—Geoffrey Skelley, 538