“Hispanic and Black voters not only turned out at a massive rate, but also swung back towards Democrats in terms of support levels, relative to the 2024 presidential election,” Tom Bonier and Simon Rosenberg wrote in Wednesday’s memo.

To be clear, every major demographic group shifted left in these midterms, offering a stunning rebuke of President Donald Trump and his brand of the Republican Party. “The final popular vote margin for the House will take weeks to determine, but at this point Democrats are on track to have the largest popular vote margin in a midterm election since 1974,” Bonier and Rosenberg write. “Voters of color were the driving force behind the blue tsunami.”

But the shift in voters of color proved pivotal in many cases. Hispanic voters had a 28-point move leftward from 2024’s presidential levels, according to a New York Times analysis. Black voters moved nine points. Asian American voters? They moved 17 points.