For more than a year, federal prosecutors have been investigating the Capitol riot, and at least 700 people have been charged, mostly with lower-level crimes. So it was stunning when prosecutors last week charged the leader of the far-right militia group known as the Oath Keepers, along with 10 other members or associates, with seditious conspiracy. That's a a rarely-used Civil War-era statute reserved for only the most serious of political criminals. But court documents show how long in the making it was that Donald Trump’s most fervent and dangerous supporters mobilized to subvert the 2020 election results through force and violence, even though there was no widespread election fraud.

For more than a year, federal prosecutors have been investigating the Capitol riot, and at least 700 people have been charged, mostly with lower-level crimes. So it was stunning when prosecutors last week charged the leader of the far-right militia group known as the Oath Keepers, along with 10 other members or associates, with seditious conspiracy. That's a a rarely-used Civil War-era statute reserved for only the most serious of political criminals. But court documents show how long in the making it was that Donald Trump’s most fervent and dangerous supporters mobilized to subvert the 2020 election results through force and violence, even though there was no widespread election fraud.