Ron Dellums, a Marine turned antiwar activist and ground-breaking Democratic politician, was never one to walk away from a fight, no matter who started it. Dellums, who died Monday at the age of 82, made that clear during his first run for Congress in 1970, when Republican Vice President Spiro Agnew, speaking for President Richard Nixon’s White House, pointedly branded the young Berkeley councilman as “an out and out radical” who needed to be “purged from the body politic” for his stance against the war in Vietnam and up-front fight against social ills.