"People with mental illness are not being treated the way they should be," Black Lives Matter Co-Founder Patrisse Khan-Cullors said.
About 20 members of the white supremacist group, some armed and wearing face coverings, are expected to arrive in Dayton on Saturday afternoon.
Twenty members of a KKK-affiliated group are expected to be faced by 1,000 counterprotesters.
"One woman can be ignored, two can be dismissed, but together, we're a supermajority, and we're unstoppable," according to Supermajority, a political organization founded by three prominent activists.
LAPD officers arrested 36-year-old Daniel Sohn for impersonating police and identified him as the Asian man who yelled "white power" at Black Lives Matter protesters last month.
Police handcuffed a black 18-year-old for allegedly robbing two white women, one of whom was his grandmother.
Exclusive: Edgar Alvarez said his 7-year-old daughter has been left "terrified" after New York Police Department officers descended on a "peaceful" neighborhood gathering.
Though many, including the President, have accused Antifa of provoking violence, the activists see themselves as the first line of defense against fascism.
Kessler recently announced plans to hold a "white civil rights rally" on the anniversary of last year's deadly Unite the Right protest.
Video emerged Saturday showing Black Lives Matter protesters crashing the wedding of a police officer who shot and killed Stephon Clark in his own backyard in March.
The names that received the most backlash included Flint Michigan Tap Water, Black Beer Matters and White Guilt.
"Why did it take this long?" Hawk Newsome, a civil rights activist and head of Black Lives Matter of Greater New York, said.
"We are in the middle of another attempt to reckon with our national failure to achieve real and sustainable progress toward racial justice."
Less than 25 percent of New York Police Department officers have received implicit bias and crisis intervention training since both were promised in 2015.
"This resistance towards Trump is a resistance towards the larger U.S. government that has continued to undermine communities most marginalized," Khan-Cullors says.
The 24-year-old told the court he resorted to the makeshift flamethrower only because police officers were doing nothing to protect the counterprotesters from the right-wing rally.
"Black men work on their fields, and they have no sympathy for their sufferings," Black Lives Matter of Greater New York President Hawk Newsome said of the NFL.
"I used her ashes so they can be with him, so he can feel her, because he murdered her," Sheila Hines-Brim said.
Radio host Jesse Lee Paterson made the "vile" remarks during appearance on British television.