wrote former colleague and PBS NewsHour anchor and managing editor Judy Woodruff on Twitter.Prior to retiring in 2020, the syndicated columnist for the Shields & Brook discussion segment worked at the station for more than three decades. He provided political analysis during moments of national importance, the Persian Gulf War, the Iran-Contra affair, 9/11 and the start of the War on Terror. His tenure had spanned six presidencies.“For 33 years, thanks to a large risk taken by Jim Lehrer and Robert MacNeil in 1987, I’ve had the best job in Washington journalism,” Shields said at the time.