Lester Holt revealed his plans to leave "NBC Nightly News." Why is he stepping down as anchor, and who could replace him? Here’s everything to know so far.

After Lester Holt announced his exit from NBC Nightly News, several of his colleagues from the network expressed their gratitude for all he has done, including Dylan Dreyer. Dylan, 43, shared a photo on Instagram of herself sitting with Lester,

Lester Holt, the anchor and managing editor of “NBC Nightly News” for a decade, announced Monday that he is stepping down from the long-running broadcast at the beginning of the summer. Holt will continue to be a fixture at the network with a full-time role at “Dateline,