After working seven years for the New Orleans newspaper The Times-Picayune,[1] Nelson in June 2007 became a morning anchor for WWL-TV in that city. On July 7, 2010, he became co-anchor of the ABC overnight news program World News Now and that network's America This Morning.[3] In January 2014, Nelson joined New York City's WABC-TV as co-anchor of the weekend morning newscasts, succeeding Phil Lipof.[citation needed] On February 24, 2020, he announced he was leaving the station to pursue other opportunities.[4] Nelson subsequently headed to Chicago, where he helped Nexstar Media Group launch NewsNation for its national station WGN America.[5] The program, launched September 2020 was originally three hours but over time the retitled NewsNation Prime was reduced to one hour as the rebranded NewsNation channel added more opinion and analysis programming. Nelson left NewsNation in August 2021.[6]
Nelson signed on to be part of the relaunch of Newsy as it became a broadcast and streaming television news channel in October 2021. In doing so, he rejoined Kate O'Brian who hired him at WABC. He was the 4 p.m. to 7 p.m. anchor of Newsy Reports, a straight news program, and is based out of Atlanta.[7] In June 2022, he became the co-anchor of Morning Rush with Alex Livingston.[8]