They voted for Johnson by a huge margin.
The Atlas ICBMs were all retired by the end of 1965 because they were obsolete. It didn’t have anything to do with which party was in control.
The Atlas took 10-15 minutes to launch and was liquid fueled, which made it very dangerous.
The new Minuteman missiles could be launched in less than a minute and were solid fueled, which made them safer and require less maintenance.
The Minuteman was also much more accurate than the Atlas.
Oh boy, so much for all these decades of trust and not verifying.