How both parties have changed since 2024

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The 2026 midterms will test Republican disillusionment with Trump — and Democrats’ new appetite for a fight.

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Depending on your political appetite and your geographic location, you absolutely do not need me to remind you of the upcoming midterm elections. But for those of you unencumbered by an unhealthy attachment to political news, and unassaulted by the onslaught of ever-more-brazen political ads, consider this your official notice that the midterms are approaching. Fast.

In less than six weeks, Americans will head to the polls to decide which party controls Congress, along with a slew of state and local offices. The stakes are arguably unusually high: Voters will choose whether to check the power of a president who has bulldozed over historical norms and limits.

So starting this evening, I’m partnering with my colleague Astead Herndon and Vox’s Midterms, Actually team for five weekly editions on the biggest issues shaping the 2026 midterms. Together with outside experts, we’ll break down one issue each week and suggest further reading and races to watch in November.

Up first, and without further ado: the profound shift that both parties have experienced since the 2024 election. These are not your mother’s Democrats. Or Republicans.

To kick this series off, I asked Astead to imagine a hypothetical world in which he hadn’t followed politics since 2024. (An outlandish counterfactual: Astead is acutely plugged into politics.) But in this alternate universe, I asked, what would surprise him most about 2026?

Easy, he said. The GOP’s disillusionment with President Donald Trump, who remade the party in his image.

Let’s put some numbers on that phenomenon, to start. Trump’s approval rating has dipped to record lows, even among Republicans. According to an NBC poll conducted in mid-September, just four in 10 Republicans strongly approve of Trump’s performance, down 11 percentage points from the spring.

Republicans have soured on Trump over his handling of the economy and attacks on Iran, which violated his promise to keep America out of foreign wars. Trump’s delayed release of the Epstein files also fueled distrust in his base by exposing his own ties to the dreaded “elite insiders.”