Cummings married Scarborough and Brzezinski in a November 2018 ceremony at the National Archives in Washington, D.C., and often joined their weekday MSNBC program "Morning Joe."

"Thank you, Elijah, for being such a good friend. But we thank God even more that you were such a powerful advocate for your constituents and a true patriot fighting for justice and truth," Scarborough wrote to his more than 2 million followers alongside a photo from the wedding ceremony.

Thank you, Elijah, for being such a good friend. But we thank God even more that you were such a powerful advocate for your constituents and a true patriot fighting for justice and truth. pic.twitter.com/E1SgnQXorO — Joe Scarborough (@JoeNBC) October 17, 2019

"We are heartbroken," Brzezinski also tweeted with the same photo.