Every night at midnight, a history professor in Maines writes about American politics. By morning, 2.6 million people…..

In September 2019, Heather Cox Richardson was driving home from teaching her history classes at Boston College when her phone started buzzing.
Relentlessly.
She’d posted something on Facebook earlier that day—a simple explanation of a political development that had confused millions of Americans. The first impeachment inquiry into President Donald Trump had just begun, and the news was chaos.
Every channel …