Fox News political analyst Gianno Caldwell said Colin Kaepernick and other athletes have a right to protest during the national anthem, but if they're serious about effecting change, they should take concrete action.

Kaepernick, who started the trend of NFL players refusing to stand for the anthem in 2016 to protest racial inequality and police brutality, is back in the news after Nike announced on Monday that he is the new face of the company’s “Just Do It” campaign.

On "Fox News @ Night" on Monday, Caldwell said racial injustice “absolutely exists” in the U.S. and Kaepernick has a right to kneel during "The Star-Spangled Banner," but he opposes disrespecting the anthem and flag.

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“If he's really, really serious about it, and I’ve said this about other NFL players as well, take it beyond a protest,” Caldwell said. “Go meet with members on Capitol Hill. These are very rich and influential people who can actually make a change in this country and bring about some real reforms."

"So I find it very difficult when it comes to this issue to see what they're really looking to do beyond protest, because you’re not taking a real action outside of what I feel to be a dividing of the country by disrespecting the flag.”

ESPN host Stephen A. Smith took notice of Caldwell's commentary and praised him on Twitter.

Watch the "Fox News @ Night" segment above.

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