When I was reading the Alvin Schwartz stories the other day, there were a good ten that had a certain social conscience, if you read them in the right way.
And there are two well known Superman stories from the early '60s that are critical of the U.S. government's policy on nuclear arms. One is much ballyhooed and the other is much mocked.
"The Amazing Story of Superman-Red and Superman-Blue" has the Supermen imposing nuclear disarmament on both the U.S.A. and the U.S.S.R--in SUPERMAN 162 (July '63). That story is often declared as one of the great Superman stories, yet people never point out how controversial Superman's actions would have been in 1963 when the story came out.
"The Invasion of the Super Ants" is laughed at and jeered by readers who can't get beyond the cover which shows Superman with a red ant-head--in ACTION COMICS 296 (January '63). Yet the actual story is a moral lesson to warn all governments of the world including the United States against the build up of nuclear weapons.
Both stories clearly go against the policy of the United States at the time. And it was very brave in those days to take that kind of stand against America's nuclear arsenal. But I believe Weisinger was not in favour of the Cold War build up.
At the same time, I think Weisinger and others at DC probably supported the Democrats--or at least John F. Kennedy. During the short time he was in office, JFK appeared in three different Superman stories. That's more than Eisenhower, who appeared in one. I don't think Truman appeared in any--nor FDR--at least according to the Fleisher encyclopedia. But Kennedy's social activism probably appealed to the editor of the Superman books, even if his nuclear policy was challenged.