Trump campaign manager Brad Parscale denounced the move, saying that "Snapchat is trying to rig the 2020 election, illegally using their corporate funding to promote Joe Biden and suppress President Trump."
Snapchat will not promote accounts in the US that are linked to people who incite racial violence on or off the messaging platform, according Spiegel.
Snapchat parent Snap chief executive Evan Spiegel over the weekend sent a lengthy memo to employees condemning what he saw as a legacy of racial injustice and violence in the US.
Snapchat on Wednesday became the latest social network moving to curb the reach of US President Donald Trump, claiming the president has been inciting "racial violence."
Last month, Ken Farnaso, the Trump campaign deputy press secretary, told AFP that Snapchat was an important element of the re-election effort and that the Republican was ahead of Biden on the platform.