The American Communist Party hasn’t run a presidential candidate since the 1990s. They decided it was too expensive, and they didn’t have a chance of winning, so they have simply backed whoever the Democrats nominated. That should tell you all you need to know about today’s Democrats.
Gus Hall is the last one I remember. When the RCP came out, the kids of that time (a bit younger than I was) reviled Gus as a tool and a stooge. Kinda funny, really, considering supporters of any commie BS are stooges and tools.