"A documented white nationalist has no place in any presidential administration, and especially not in such an influential position," the representatives wrote.
Richard Tobin allegedly recruited people using a neo-Nazi social network called "The Base" to vandalize synagogues with spray paint in Michigan and Wisconsin.
"His beliefs are appalling," caucus leaders said in a joint statement.
The New York congresswoman started the petition after a report on Miller's leaked emails showed he pushed white nationalist conspiracy theories.
The secret identity of a New York City hypotherapist and college professor has been revealed, after alt-right infighting resulted in the man being "doxxed" and outed as white nationalist Richard Spencer's podcast co-host.
At a town hall event in Louisiana on Monday, members of a progressive Jewish activist group on confronted Rep. Steve Scalise over what the group says is "anti-Semitic" and "anti-immigrant" rhetoric promoted by Republicans.
I attend Rosh Hashanah services every year. This year was different. I kept looking over my shoulder during the service, holding my breath.
"Based on the hierarchy of what's impacting minority Americans, if I had to make a list of 100 things, white nationalism would not make the list," the black conservative commentator told lawmakers.
Late last month Trump said that Jewish people who voted for Democrats (that's the vast majority of Jewish people in the U.S.) were being disloyal, bringing up the common anti-Semitic trope of dual loyalty.
The college president called the parade a "perversion" and an "affront to the wonderfully pied beauty of our affirming and diverse commonwealth of learning."
"Too many people have fought over the years, too many people have died against racism to let it resurface and flourish in America," Sanders said at a young leaders conference.
Some lawmakers are calling for a new Patriot Act with a focus on far-right hate crimes. The president wants Antifa in the mix.
Since 2002, the number of people killed in attacks because of the far-right and because of Islamist radicals is nearly equal.
The organization's call follows a spate of mass shootings that have left communities from Texas to Ohio reeling.
"He laughed. He laughed Marc," Jim Sciutto repeatedly pointed out to Marc Lotter.
The El Paso shooting suspect's manifesto reflects a classic fever dream of the white ethnostate. More innocent people will die unless we all stand up.
"The ultimate amplifier on this kind of hate is the bully pulpit of the White House," the 2020 Democratic presidential candidate said.
"It does not just offend our sensibilities, it fundamentally changes the character of this country and it leads to violence," the 2020 Democratic presidential hopeful said.
"There have been multiple attacks from self-declared white terrorists here in the U.S. in the last several months," Bush, the Texas Land Commissioner, said.
The Democratic representative's comments arrived in the wake of Saturday's attack on a synagogue in San Diego.
Donald Trump Jr., the president's eldest son, said right-wing activist Candace Owens called out the "purposeful manipulation of facts" by Democrats.
About two-thirds of Americans in a new Pew Research Center survey said it had become more common for people to express racist views since Donald Trump took office.
D'Souza claimed the Democratic Party "created white nationalism, and in a sense they've also created black nationalism."
"As a country, we have to acknowledge that this is how people are being treated here and decide that we are better and we must do better," Representative Ilhan Omar tweeted on Thursday.
Chuck Scarborough said he would "cheerfully champion" a change in the Constitution allowing Obama to run again.
Trump infamously called "for a total and complete shutdown of Muslims entering the United States" before taking office.
"But at the end of the day, these types of incidents are the result or the fault of the person behind the gun," Alice Stewart said.