Leftist political parties in the U.S.

[RedWorker]

Which are some good, leftist parties in the U.S.?

[Red Commissar]

...

It should be noted though that broadleft.org hasn't been updated since 2006. A number of these parties are moribund, have merged or split, or have changed their politics or tactics since then.

As to what parties are worth checking out, you'll probably get some members of different groups chiming in soon.

[Trap Queen Voxxy]

Which are some good, leftist parties in the U.S.?

ELF, ALF, IWW, RCP-US, PeTA, etc