The president then put his hand over his heart and sang along to a few words of the "Star-Spangled Banner" but stayed silent at other times of the anthem.
The NAACP Atlanta branch urged people to wear white and wave white towels when the president enters or is mentioned.
President Donald Trump won the states of Alabama and Georgia in the 2016 presidential election, but Jackson says his politics and policies are antithetical to Dr. Martin Luther King's dream for America.
The NAACP also planned a "Twitter storm" to begin at 6 p.m. and continue through the game to highlight what they say are lies told by the president.
The NAACP is encouraging people to protest the president's visit to attend the college football national championship game by carrying anti-Trump signs and wearing white - an effort to mock the "snowflake" term used by some Trump supporters, according to the news service.
"We're going to make a snowflake turn into a mighty blizzard inside of Mercedes-Benz stadium when Mr. Trump comes", Gerald Griggs, vice president of the Atlanta NAACP, said Monday. Organizers said the show of white was meant to mock the "snowflake" insult that Trump supporters make against the president's opponents.
Refuse Fascism ATL has also said that they will be planning a protest ahead of Trump's arrival.
Atlanta police have said they will set up several designated areas for protesters and won't interfere with demonstrations.
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