(Chip Somodevilla/Pool via AP)WASHINGTON – FBI Director Chris Wray told lawmakers Thursday that antifa is an ideology, not an organization, delivering testimony that puts him at odds with President Donald Trump, who has said he would designate it a terror group. Hours after the hearing, Trump took to Twitter to chastise his FBI director for his statements on antifa and on Russian election interference, two themes that dominated a congressional hearing on threats to the American homeland. Trump tweeted that the U.S. would be designating antifa as a terrorist organization, even though such designations are historically reserved for foreign groups and antifa lacks the hierarchical structure of formal organizations. The FBI director said racially motivated violent extremists, such as white supremacists, have been responsible for the most lethal attacks in the U.S. in recent years. He responded on that front Thursday evening, tweeting: “But Chris, you don’t see any activity from China, even though it is a FAR greater threat than Russia, Russia, Russia.

(CNN) A Twitter account that tweeted a call to violence and claimed to be representing the position of "Antifa" was in fact created by a known white supremacist group, Twitter said Monday. "This account violated our platform manipulation and spam policy, specifically the creation of fake accounts," a Twitter spokesperson said in a statement. Although the account only had a few hundred followers, it is an example of white supremacists seeking to inflame tensions in the United States by posing as left-wing activists online. The phenomenon of people on the right creating fake Antifa accounts predates the current wave of protests. The takedown Monday is not the first time a fake Antifa account linked to white supremacists has been suspended by Twitter, the spokesperson confirmed.

But the state is looking at data from arrests and human intelligence that points to some outside influence seeking to capitalize on the situation and create unrest. Those domestic extremist groups include anarchists, anti-government groups often associated with far-right extremists and white supremacy causes, and far-left extremists who identify with anti-fascist ideology. O'Brien pointed to Chinese social media messages gloating about the chaos. Rubio may have been basing some of his information on analysis from Graphika, a company that helped the committee with its report on Russia's social media influence during the 2016 elections. "Yes, we are seeing very active engagement with the issue from clusters of social accounts in the social media influence networks of Russia, Iran, and China," Kelly said.

President Donald Trump tweeted Sunday that the United States will designate Antifa as a terrorist organization, even though the US government has no existing legal authority to label a wholly domestic group in the manner it currently designates foreign terrorist organizations. US law allows terrorist designations for foreign groups since belonging to those groups doesn't enjoy the same protections. That has made it difficult for US law enforcement to deal with violence from members of groups that label themselves as Antifa. In response to the President's tweet, ACLU National Security Project Director Hina Shamsi said there is "no legal authority for designating a domestic group" as a terrorist organization. There is no legal authority for designating a domestic group.

Here's a closer look at Antifa protesters, who have become more visible in the last several years. The majority of Antifa members don't fall into a stereotype. Since the election of President Trump, however, most new Antifa members are young voters. Levin said Antifa activists feel the need to partake in violence because "they believe that elites are controlling the government and the media. White nationalists and other members of the so-called alt-right have denounced members of Antifa, sometimes calling them the "alt-left."