Democratic Rep. Andre Carson of Indiana, one of two Muslims in Congress, says "racial supremacist groups" are the "largest" threat in the U.S. (video below).
"I just saw a report where the white supremacist group Storefront -- this has been a call to action, the rhetoric that we're seeing," Carson told ABC News on Dec. 13, according to CNSNews.com. "It concerns me.
"I think that most of our largest domestic threat comes from racial supremacist groups. I've worked in counterterrorism; I know this to be a fact."
Carson also went after Republican presidential front-runner Donald Trump.
"What we have to understand is that we're living in the time where there's a restoration movement taking place," Carson said. "People want to take us back to some mythological good ol' days, and there are elected officials who are capitalizing on this sentiment.
"We will see next year. The American people are very intelligent; they will push back on this kind of rhetoric because it's very dangerous. Mr. Trump -- I've met Mr. Trump, I've read most of his books -- he's a smart man, which is why his rhetoric is that much more dangerous and we have to push back."
According to International Security, an online database created by the think-tank New America, there have been 48 people killed by right-wing extremists and 45 killed by jihadists in the U.S. since 9/11.
Additionally, there have been 317 people charged with jihadist terrorism-related crimes, while 182 nonjihadists have been charged.
"While the majority of individuals in the dataset have been charged with a terrorism-related crime, we have included a small number of individuals who either died or were killed without being charged, and are widely and credibly reported as having engaged in violent extremist activity," International Security notes.