Matt Grossmann

Reconciliation and rescission How did Congressional Republicans succeed & how much more can appropriations power decline? New Science Of Politics podcast/transcript with @mollyereynolds niskanencenter.org/reconciliation…

Thermostatic public opinion on immigration lives! "Surge in U.S. Concern About Immigration Has Abated" Especially noteworthy: Trump's approval for his handling of immigration among Hispanics is down to 21%. news.gallup.com/poll/692522/su…

NEW STUDY: Staff hiring over 1996-2024 shows the diploma divide is in the White House. Elite universities sent far more alumni to work for Democratic presidents. Full paper: myumi.ch/pVMM5 Details: Democratic presidents tend to value more credentials... 1/6

Communities with colleges exhibit higher levels of civic engagement and greater social trust today, relative to “runner-up” locations without colleges that were considered long ago. These counties are also more politically liberal, especially since 2000 scholar.google.com/scholar_url?ur…

Today (w/ @UniofOxford @Stanford @MIT @LSEnews) we’re sharing the results of the largest AI persuasion experiments to date: 76k participants, 19  LLMs, 707 political issues. We examine “levers” of AI persuasion: model scale, post-training, prompting, personalization, & more 🧵

District courts are ruling against Trump administration, but not the Supreme Court data4democracy.substack.com/p/the-supreme-…

On issue focus (economy vs democracy), contrast vs Trump attacks, & distancing from Biden, it was not a left vs center fight but the left & center (including the SuperPAC) vs the campaign. So they may settle on "too much on TV, not enough on ground" nytimes.com/2025/07/19/us/…

NEW: There’s been a lot of discussion lately about rising graduate unemployment. I dug a little closer and a striking story emerged: Unemployment is climbing among young graduate *men*, but college-educated young women are generally doing okay.

How does the rescission package passage affect ongoing USAID litigation?

Increasingly distinct & homogeneous majority parties select moderate party leaders in state legislatures, especially Republicans. But divergence of majority party leaders from their caucuses leads to failures of agenda control, especially for Republicans onlinelibrary.wiley.com/doi/abs/10.111…

Confidence in higher education is rising again (likely thermostatically in response to attacks), but with remaining concern more concentrated on politics & less on costs news.gallup.com/poll/692519/pu…

greater country campaign financing pressures lead to greater shares of very wealthy legislators onlinelibrary.wiley.com/doi/abs/10.111…

An economist in Sweden just got a hold of the data from a quarter of a billion online chess games held on @chesscom to test a classic question: Does winning one game make you more likely to win the next? In other words: do “hot hands” or “psychological momentum” exist in…

The revised voucher provision in reconciliation still opens an option for Dems to copy. Rather than appropriate $ for alternative energy, health care, or social services, they can just give 100% tax credits for individuals to give to charities to do it edweek.org/policy-politic…

New from the Science of Politics: Casey Dominguez & @MattGrossmann discuss: – The shift of war powers from Congress to the president – How nationalism & partisanship have increased presidential authority – How Trump’s military actions compare to historical norms

I'm very pleased to share that my paper, "Introducing CongressData and Correlates of State Policy," coauthored with @MattGrossmann and Caleb Lucas, is now out (open-access!) at Nature Scientific Data. nature.com/articles/s4159…