The President of the United States is campaigning for reelection using a Nazi concentration camp symbol.— Bend the Arc: Jewish Action (@jewishaction) June 18, 2020
Nazis used the red triangle to mark political prisoners and people who rescued Jews.
Trump & the RNC are using it to smear millions of protestors.
Their masks are off. pic.twitter.com/UzmzDaRBup
After Twitter began to discuss certain election campaign ads being run on behalf of Donald Trump's re-election bid Facebook quickly removed the symbol.
National Public Radio NPR reported on the same day that:
The Trump campaign responded by drawing a lighthearted comparison to the red triangle symbol: "This is an emoji."
The campaign also falsely claimed that the symbol is used by antifa groups and noted that it is not in the Anti-Defamation League Hate Symbols Database.
In an interview with NPR, Jonathan Greenblatt, CEO of the Anti-Defamation League, pointed out that the database is not a collection of historical Nazi imagery.
It should be noted that the triangle emoji approved in 2015 is an up pointing triangle. There is no down pointing approved emoji.
Trump himself was not tweeting an immediate response to Facebook's action, nor did he do so in the following days.
He appeared to be much more exercised by future US Supreme Court appointments (in light of the same court upholding the legality of the Deferred Action for Childhood Arrivals (DACA) program) and former national security advisor John Bolton's tell-all book "The Room Where It Happened" due for release soon.