Photos: Tom Hayden

Activist Tom Hayden in January 2003.

(Beatrice de Gea / Los Angeles Times)

Oct. 23, 2016 12:44 PM PT

Tom Hayden, a 1960s radical who became one of the nation’s best-known champions of liberal causes, has died. He was 76.

Tom Hayden, political activist and former California state senator, at a get-out-the-vote rally in Los Angeles on Nov. 1, 2010.

(Mark Boster / Los Angeles Times)

Tom Hayden whips up the crowd at a rally in Los Angeles on Dec. 2, 2015. He called for a global agreement to reduce greenhouse gas pollution ahead of the international climate summit in Paris the following week.

(Al Seib / Los Angeles Times)

Tom Hayden in 2007.

(Brian Vander Brug / Los Angeles Times)

Tom Hayden speaks to supporters at his campaign headquarters on June 5, 2001, in his failed attempt to win a Los Angeles City Council seat.

(Patrick Liotta / Associated Press)

Then-state Sen. Tom Hayden at the Capitol in Sacramento on Aug. 23, 2000.

(Lori Shepler / Los Angeles Times)

State Sens. Tom Hayden, from left, Jackie Speier, Nell Soto and Richard Alarcon attend a hearing of the Senate Standing Committee on Insurance at Granada Hills High School on May 10, 2000, about alleged misconduct by insurance companies after the Northridge earthquake.

(Myung J. Chun / Los Angeles Times)