Speaking before the National Rifle Association (NRA) on Friday, President Donald Trump reprised his racist attack on U.S. Sen. Elizabeth Warren (D-Mass.), calling her "Pocahontas" during a "campaign-like speech" to an appreciative crowd.

"I have a feeling in the next election you're going to be swamped with candidates," he said to the pro-gun group's annual meeting in Atlanta. "But you're not going to be wasting your time. You'll have plenty of Democrats coming over and you're going to say, 'No sir, no thank you. No ma'am'—perhaps ma'am. It may be Pocahontas, remember that. And she's not big for the NRA, that I can tell you."

The remark reportedly drew "big laughs."

The President of the United States just called @SenWarren "Pocahontas" (again) pic.twitter.com/zJH4FsHV9V — Steve Kopack (@SteveKopack) April 28, 2017

Warren has been a major thorn in Trump's side since before he was elected; she denounced him during the 2016 campaign as a "money-grubber;" a "thin-skinned racist bully;" and a "loser." Since he became president, she's been a leading figure in the resistance, recently giving him an "F" grade for his first 100 days in office.

Reaction online to Trump's latest attack was swift and furious:

Donald Trump is deeply racist and the conservative movement’s core institutions love it. https://t.co/5MQmOvBGmQ — Jamison Foser (@jamisonfoser) April 28, 2017

@AnaKasparian @SenWarren He's staying on brand. Unfortunately his brand is "racist sexist lowlife" — Dan Friedman (@TheDannyFresh) April 28, 2017

Trump calling Warren Pocahontas is racist. We kind of gloss over it at this point. But this is the president being racist. SCROLL TO CONTINUE WITH CONTENT Never Miss a Beat. Get our best delivered to your inbox.





— Sam Stein (@samsteinhp) April 28, 2017

Trump calling Elizabeth Warren "Pocohontas" is dog whistle racism. A form of "socially acceptable" racism that is heard loud and clear. — Claude Taylor (@TrueFactsStated) April 28, 2017

The United States President referring to a sitting United States Senator as “Pocahontas” is something we should continue to be shocked by. — Matt Viser (@mviser) April 28, 2017

Even before he insulted Warren, Trump's speech to the NRA—the first from a sitting president since Ronald Reagan addressed the group in 1983—served as a reminder that the president is often in campaign mode.

He "started his address with a freewheeling recollection of his November election victory," Fox News wrote, and vowed to "never, ever infringe on the rights of the people to keep and bear arms."

According to Heavy.com, "the biggest applause of the afternoon came when he talked about building a wall along the southern border."