Well at least he blamed LBJ for the war, and not Nixon, like all the other lefties do, as if LBJ never existed.
That would have been an anachronism, as Nixon wasn't even president yet. Their peak was while LBJ was president, and they broke up a little more than a year after Nixon was president.
It looks like none of their songs even charted on the Top 100, but their albums got as high as #23.