Twitter blocked a divisive hashtag comparing Senator Tim Scott to racist "Uncle Tom" that depicts Black people as sellouts.
The Republican Party chose Scott to deliver the rebuttal to Joe Biden's first ever speech before 200 members of Congress on Wednesday night.
The 46th president spoke for about an hour to a nearly empty room due to Covid concerns -- despite the fact that he is fully vaccinated.
After Biden's speech, Scott, the Republican senator from South Carolina, said the United States is not a racist country and most Americans are not racists.
Scott spoke of an unfriendlier time in America when he experienced discrimination.
He argued that the same party that claims to fight white supremacy is the most intolerant of others.
"I get called Uncle Tom and the N-word by progressives ... I know first-hand, our healing is not finished,' he said.
"Hear me clearly: America is not a racist country."
The hashtag "Uncle Tim" began trending on Twitter soon after he spoke.
Bishop Talbert Swan, a black pastor from Massachusetts, tweeted: "Uncle Tim Scott has perfected the art of sycophantic bootlicking. He's a master step n fetch it artist and cunning white supremacy apologist, who demonstrated his buck dancing skills in front of the entire world."
But others pointed out the hypocrisy that exists on social media.
One Twitter user wrote:
"The fact that "Uncle Tim" is trending on Twitter tells you all you need to know about the left."
Another user tweeted:
"Not stunned that Uncle Tim is trending because how dare even one black person not follow the Democrats like the Pied Piper. How dare Sen Tim Scott have his own opinions and principles?"
Twitter allowed the hashtag to trend for hours before it was finally blocked.