A TV and radio broadcaster who was one of the fixtures of MSNBC’s prime-time lineup died today. USA Today reports that Ed Schultz died at his home in Washington, D.C., at age 64.

Schultz reportedly died of natural causes.

“Schultz hosted ‘The Ed Show’ on MSNBC from 2009 to 2015. His radio show, ‘The Ed Schultz Show,’ ran from 2004 to 2014,” USA Today notes. “He began his career as a local sportscaster and then conservative radio show host out of Fargo, N.D. According to Shultz’s former employer, WDAY, he even considered a run for Congress as a Republican in 1994 after becoming tired of ‘socialist’ politics.”

But Schultz went through a political transformation, eventually becoming known as a fiercely liberal Democrat.

“As he became a self-identified ‘lefty,’ Schultz appealed to liberals who identified with the plight of the working class and the decline of American trade unions,” the report notes.

After leaving MSNBC, Schultz went to work for the Russian-backed media organization RT America.

USA Today adds: “Schultz was a controversial figure at MSNBC. In May 2011, the cable news network suspended him for one week without pay for calling conservative talk show host Laura Ingraham a ‘right-wing slut.'”