Football players in the once-reluctant league protested against racism and police brutality by kneeling, raising fists or staying off the field for the national anthems.
Young people across the country performed a pitch-perfect take on "The Star-Spangled Banner" to kick off the Democratic National Convention.
The NFL and college leagues are working to figure out if a football season can take place this fall.
The former Chicago Bears coach's opposition to the kneeling protests is still ill-informed four years later.
The two teams — the Seattle Storm and New York Liberty — stayed in their locker rooms in solidarity with Black Lives Matter while the anthem played.
Yankees, Nationals, Giants and Dodgers players and staff knelt before the national anthem at season openers to show support for the Black Lives Matter movement.
Players for the National Women's Soccer League's Portland Thorns and North Carolina Courage took a knee during the national anthem.
The Scrap Yard Dawgs executive tweeted a photo of the team standing for the national anthem. "Everyone respecting the flag!“
Trump defended Brees's remarks on the national anthem protests, even after Brees apologized and vowed to be an ally to the Black community.
The commissioner is backtracking from the football league's original stance that players should not be allowed to peacefully protest during the national anthem.