Replying to a tweet Tuesday morning, Spencer wrote that he recognized how "ineffective, useless, and traitorous the GOP is," reaffirming his decision to vote for Biden in the November election.
"Your support is 10,000% percent unwelcome here," a Biden campaign spokesperson said.
Spencer rose to prominence after shouting "Hail Trump!" and being greeted with Nazi salutes in Washington shortly after Donald Trump's 2016 election victory.
Neo-Nazi described how he hoped that "our traitorous elite is brought to justice" after tensions rose following death of Qassem Soleimani.
In an interview for ABC News, former military officers weighed in on Trump firing Navy Secretary Richard Spencer.
Analysts discuss Richard Spencer op-ed and Trump's intervention in Eddie Gallagher case on The Situation Room.
In an opinion piece originally published by The Washington Post, fired Navy Secretary Richard Spencer said Trump's intervention in the case of SEAL Edward Gallagher shows "the president has very little understanding of what it means to be in the military."
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.
Audio attributed to the prominent white nationalist activist had thousands of people writing to the social media platform.
Game sees you play as far-right figureheads to save President Trump from "left-wing terrorists."
"Jews are, once again, at the vanguard, rethinking politics and sovereignty for the future, showing a path forward for Europeans," Spencer said.
Estrada is seeking a Los Angeles suburb seat in the State Assembly, but some Jewish community leaders are concerned over her connection to the Nation of Islam's Louis Farrakhan and her own anti-Zionist Facebook posts.
Jason Kessler, one of the organizers of last year's rally, applied for a permit for a second event to take place on its anniversary in August 2018.
Spencer's website is no longer available—and his supporters are calling for a GoDaddy boycott.
Richard Spencer and David Duke continue to be allowed to reach wide audiences on Twitter, despite its much-publicized "purge."
More than 20 anti-Muslim groups remain active on Facebook.
The year 2017 will be remembered as the year Nazis re-emerged as a visible presence in the United States and the word alt-right became a common household term.
"These people shouldn't even be calling themselves white nationalists," a Klan leader said about the alt-right.
As America grapples with the fallout from racist violence in Charlottesville, furries across the land are dealing with their own Nazi problem.
The verification of Jason Kessler, who organized the Unite the Right rally, caused a backlash and prompted Twitter boss Jack Dorsey to admit the company had failed.
Richard Spencer was scheduled to visit Poland. But the country's government doesn't want him there.
A new poll found that 30 percent of soldiers believed white nationalism was a bigger threat than the conflicts in Iraq and Syria.
"When I hear Spencer saying, 'For us, it is to conquer or it is to die,' I hear echoes of 'Mein Kampf,'" a University of Florida historian tells Newsweek.