What is Antifa and what does it stand for?
ANTIFA is a left-wing political movement that Donald Trump has branded a "terrorist organization".
Its campaigners have sparked controversy — and headlines — after being involved in violence in cities across America.
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Here is more on the controversial political movement.
What is Antifa and what does it stand for?
Antifa is an umbrella term for a broad spectrum of far-left and anarchist groups.
"They're looking to do bad things to our country. They're Antifa and they're radical left," he alleged.
FBI Director Chris Wray told a hearing that the agency has been investigating "what we would describe as violent anarchist extremists,” including into individuals who identify with Antifa.
Hours after the hearing, Trump chastised Wray, saying: “And I look at them as a bunch of well-funded ANARCHISTS & THUGS who are protected because the Comey/Mueller inspired FBI is simply unable, or unwilling, to find their funding source, and allows them to get away with “murder”.
According to the group was "emerging as a persistent militant voice" in the city.
The paper reported that the group has anonymous leaders and considers itself anti-fascist and anti-capitalist, with its goal of overthrowing of the US political system.
Earlier this month, in a foretaste of what could unfold, Antifa used chemical spray on pro-Trump supporters, .
In May last year, they were involved in riots in Washington D.C. The were damaged.
At one stage, Trump was for his safety.