Matt Marshall, the leader of the Washington Three Percent, leads a nonprofit corporation. He serves on a school board. Now, a domestic terrorism scandal complicates his political ambitions.

The leader of the Washington State Three Percent, a "constitutionalist" group with militia ties, is running for office. Extremism trackers warn against normalizing paramilitary groups.

FBI Director Christopher Wray says the agency has made hate-fueled violence a top national security priority, on par with foreign terrorist groups such as ISIS. What does that mean on the ground?

The mood in Richmond is tense as thousands of gun-rights activists arrive for a rally that's also attracting extremist factions. The annual event is part of a tradition known as Lobby Day.

The FBI says it has disrupted an armed neo-Nazi cell that discussed bomb-making and attacks. They were charged in connection with their membership in a group called The Base.

The word "boogaloo" once represented a fusion of people and cultures. It was both a musical sound and a dance. Now, it's favored on the far right as shorthand for an uprising against the government.

Extremism monitors say 2019 was the year the country started taking serious measures to address a growing far-right threat.

This year marked a turning point in how the United States confronts domestic terrorism. The country began taking far-right extremism seriously amid a resurgence of white nationalist violence.

The nonprofit Parents For Peace wants Americans to see extremism as a public health emergency — one that cuts across race, religion and politics. The members are former extremists and their families.

Members of the nonprofit Parents For Peace came to Washington to show the human toll of violent extremism. They want Americans to see hate as a public health crisis.

Abdirizak Warsame was among nine Minnesota men who planned to travel to Syria to join ISIS. When the FBI foiled their plot, each faced a decision that would influence their sentencing.

In a tight-knit Minnesota community, a mother and son are outcasts because the son helped authorities in a terrorism case. The son was among nine men who sought to travel to Syria to join ISIS.

Mizna, the nation's only Arab American literary journal, was founded by a group of friends in Minneapolis 20 years ago. Since then, it's become a springboard for Arab-American writers.

ISIS launched 145 bot and "sockpuppet" accounts across Twitter in a coordinated campaign in the wake of Abu Bakr al-Baghdadi's death. Twitter is trying to stamp them out, but is struggling.

Less than a week after President Trump announced the death of Abu Bakr al-Baghdadi, the terrorist group has issued a defiant message to the world.

An Army lieutenant colonel who listened in on the phone call between Trump and the president of Ukraine in July testified behind closed doors Tuesday. Also, an update on ISIS and the NCAA.

The president announced the death of its leader, Abu Bakr al-Baghdadi. That's spurred a lot of speculation about Baghdadi's successor.

Who was Abu Bakr al-Baghdadi, and how did he manage to turn ISIS into one of the world's most fearsome terror organizations? He made the organization completely at home in the digital age.

Who was ISIS leader Abu Bakr al-Baghdadi — and how did his leadership facilitate the astonishing rise of the terror group?

Counterterrorism analysts warn that ISIS will likely strengthen in light of the Trump administration's decision to pull U.S. forces from the Turkish-Syrian border.