(Erin Schaff | The New York Times) Jacob Anthony Chansley, center, a QAnon adherent known as the Q Shaman, with other supporters of President Donald Trump who swarmed the U.S. Capitol, confronting Capitol Police officers in the building, in Washington, Jan. 6, 2021. They came from around the country, with different affiliations — QAnon, Proud Boys, a few elected officials, many everyday Americans. One allegiance united them.