The Proud Boys is a far-right extremist group. The FBI has said it has ties to white nationalism, and the Southern Poverty Law Center labeled it a hate group. Over the past four years, it has grown from a couple of guys in a bar to thousands of members across the United States, and it's been implicated in violent attacks in Charlottesville, New York City, and Washington, DC. On January 6, members of the Proud Boys were among the violent extremists who stormed the Capitol. Here's how the group rose from obscurity to breach mainstream American politics.