tl'dr: My FDR-wank/spacepunk/New-Deal-Forever-punk U.S. adopts the Grundgesetz while Germany remains Nazi.
I see your New Deal constitution and raise you my Heinlein!
It's basically highly individualistic and quasi-pacifistic, with only two punishments for crimes: rehabilitation, or exile (up to the convicted), and illegal things don't even count as crimes if they were a failure, i.e., I attempt to trespass but the security system knocks me out climbing over the fence. Exiled persons go to Coventry, a force-fielded dumping ground for convicts who don't want therapy. The only way out is to agree to rehabilitation. Or at least it was supposed to be before the big revolt, but hey no system's perfect
It's also much stricter about separation of church and state, which may have something to do with the fact that it was created after a revolution against an oppressive theocracy.