That person is Heather Cox Richardson, an historian. She's very good. Apart from doing her own academic work, she writes a long essay every day for Substack. She's evidently one of the top Substack contributors. This is shorter than usual, for the holidays: https://heathercoxrichardson.substack.com/p/november-26-2025?utm_source=post-email-title&publication_id=20533&post_id=180081355&utm_campaign=email-post-title&isFreemail=true&r=1kxqrv&triedRedirect=true&utm_medium=email