Wallace, the only black driver competing in the top series, drew a wave of support amid the incident of his fellow drivers, who then pushed him and his car at the start of the race on June 22 at the Talladega Superspeedway.
“Did @BubbaWallace apologize to all of these great NASCAR drivers and officials who came to his aid, stood by his side and were ready to sacrifice everything for him, only to find out that everything was not than another HOAX? The That & Flag decision caused the lowest scores of all time! Trump tweeted Monday.
Although NASCAR said the noose was a downed garage door, the incident took on greater significance as the nation grappled with new tensions over racism before the November 3 presidential election which also rocked NASCAR and other sports leagues.
Trump has made racial divisions a central theme of his re-election campaign as he seeks a second term. The Republican president has long courted NASCAR fans even as he and the organization are now at odds with the controversial Confederate flag of the Civil War. Its 2020 campaign also sponsors a NASCAR team.
Wallace, a staunch defender of Black Lives Matter who had long pushed for the ban on the flag, could not immediately be reached for comment.
NASCAR representatives also could not be contacted immediately.