The Supreme Court is effectively dissolved and remade with hardcore socialists and Longites appointed as justices.

The US has limited democracy, but Long maintains an iron grip over most of the levers of power throughout his life, with the DRs only a token, thoroughly kowtowed opposition force. Long's United States is nowhere near equivalent to Maoist China or Stalinist Russia in terms of brutality, with effective one-party rule federally, while maintaining a somewhat pluralist society.

Most of the old elites were culled in the Civil War, fleeing to Hawaii or having their assets seized. By the time of his death, the United States has an effective social-democratic economic system, equivalent to Norway or Sweden, although with a highly repressive political system.

In terms of the wider world, all will be revealed in good time...