President Donald Trump shared a post on Twitter in which a man described him as a "fascist."
The tweet was posted on Aug. 15 by Mike Holden, who was responding to a news report that Trump was considering pardoning Joe Arpaio, the former sheriff of Maricopa County, Arizona. Arpaio was found guilty of defying a judge's order to stop using traffic patrols to target people suspected of being immigrants in the country illegally.
"He's a fascist, so not unusual," Holden wrote.
Not long after, Trump retweeted Holden's post to his 36 million followers. As a result, Holden's tweet received thousands of likes.
Holden, who lives in England, said that at first he didn't understand why his Twitter account was getting so much attention.
"This morning I had a few hundred followers on Twitter, so obviously when I sent my tweet I didn't expect more than a couple of LOLs and a few Trump Trolls telling me I'm an idiot (which is what happened -- for the first couple of minutes)," Holden told NBC News. "But the [retweets] and likes suddenly went through the roof, so much so that I didn't realize why."
When he realized what had happened, he jokingly announced that he was done tweeting forever.
"I'm announcing my retirement from Twitter," he wrote, according to the Independent. "I'll never top this [retweet]."
He also updated his Twitter bio to read: "Officially endorsed by the President of the United States. I wish that were a good thing."
Trump eventually deleted his "endorsement," and it is not clear whether he retweeted Holden in error.
The same day, Trump came under fire for retweeting an image showing a "Trump train" slamming into an individual with the CNN logo pasted over their torso.
"Fake news can't stop the Trump train," the meme said.
The controversial tweet came just three days after a white nationalist protester allegedly used his car to attack a group of protestors in Charlottesville, Virginia, killing 32-year-old Heather Heyer and injuring 19 others.
Many Twitter users accused the president of being insensitive to the reality of political violence.
Trump has since removed the post from his Twitter feed.
"It was inadvertently posted and as soon it was noticed it was immediately deleted," a White House official told NBC News.