The 2023 elections were unambiguously good for Democrats, and liberals. Despite fierce national political headwinds and a better competitor than his 2019 matchup, Andy Beshear expanded his vote margin and held the governorship in deep-red Kentucky. In Virginia, Democrats have won control of the state legislature, flipping the House of Delegates and holding their thin majority in the Senate. Their win is a rebuke, in part, of an anti-abortion push by Republican Governor Glenn Youngkin that saturated airwaves in the final weeks of the race. Democrats won a House special election in Rhode Island by about the same margin Biden did in 2020. And a near supermajority of Ohioans voted in favor of constitutional protections for abortion and to legalize cannabis for recreational use. That's a lot of "D" W's!
But the population of Americans who cast ballots in today's races will not be the same population that turns out next year. There is strong reason to suspect it will be more Republican-leaning than voters today. Because higher levels of education are correlated with political engagement (i.e., turnout) and, increasingly, the likelihood of voting for Democrats, off-year voters have become more reliably Democratic in recent years. But in presidential years, when more voters turn out, outcomes revert to the mean. "Low-engagement" voters, who are on average less educated and more Republican, show up. Per ABC News's exit polls, 46 percent of people who voted in Ohio today said they voted for Biden in 2020, versus 43 percent for Trump. That's an 11 point swing from 2020 just because of the types of people who cast ballots. As another example, Democrats did not perform nearly as well in Rhode Island's congressional special election today, with moderate turnout, as they have been in recent special elections, where turnout has been lower.
That's not to say that 2024 will be bad for Democrats. Maybe the demographic and political composition of voters will perfectly match the breakdown in 2020 and they'll be even more Democratic-leaning. That's a possibility! But it is not likely. The fact is that America's current educational divide makes it likely that the population of 2024 voters — ephemeral as it inherently is, spontaneously existing for a day and then disappearing into the ether — will be more favorable for Republicans than today's was. Democrats should celebrate their victories tonight, but they should not use them to dismiss other indicators of a close race next year.
—G. Elliott Morris, 538