This is an early song critical of Ronald Reagan, then governor of California, decades later president. It comes from a concept album, Blows Against the Empire, that in 1970 attempted to tell the story of a rejection of American values. A spaceship would come to find a new home for people!
The specific jibe at Reagan begins having a B-movie star sending dogs in with the National Guard, to put down a protest at the University of California’s Berkeley campus, back in 1969.
“Rock Against Reagan,” a punk tour and movement, came later the 1980s.