Also, as a follow up to my earlier post, the Allies invade Germany in the 60s and they learn the extent of the brutality under Nazi rule. Of course, most people knew the nazis were bad, killing people, committing war crimes, killing every soviet soldier they came across, etc. But when the allies discover that One. Hundred. Million people are dead, as evidenced with pictures of giant pits full of their charred remains that flood into the states and the stories of those remaining, those earmarked as to be killed last by the now fallen Reich, of their families, just vanishing, just imagine the effect in the states. The six million jews eleven million total people sent the world into a shock. One Hundred Million people dead at the hands of THE racist authoritarian regime, right when the civil rights movement OTL is picking up momentum...it solidifies it. Instead of the red scare and fear of communism, we get a full-on black scare, fear of German fascism, and senators and congressmen who support segregation soon find their voter numbers dipping. I can imagine the 1965 US election as being a major upset, voting out many "old guard" segregationalists with newer, more liberal people. The democratic party would also have to go down one or two paths. Either they break with the south much faster than OTL due to the major public backlash against racist policies, or they grab on and solidify themselves once more as the party of the south while the Republicans climb to fame emphasizing their "small government not interfering with people(non authoritarian) and support of the second amendment. Given butterfly effects are hard to account for I would imagine the former rather than the later, but I can definitely see American Politics shift towards at least less racist and segregationalist policies at a faster pace than before.