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,

Lester Holt announced Monday that he will end his tenure as an NBC Nightly News anchor in early summer. "After 10 years, 17 if you include my years on the weekends, the time has come for me to step away from my role as anchor of Nightly News,

Holt has been a calming presence at NBC News, where his unflappable and low-key demeanor helped the news division move forward after a period of tumult. He took over “Nightly” duties after his predecessor, Brian Williams, was removed following scrutiny of claims the latter made about the details of a reporting trip to Iraq.