The Communist Party USA is for electing Kerry.

They aren't explicitly saying vote for Kerry, but things like:

How will the Communist Party USA and YCL do our part in this historic battle to deliver a decisive defeat to Bush...

And regarding Kerry:

He is not left. He is the vehicle by which George W. Bush, representing the most extreme reaction, can be defeated.

And in general saying how much better Kerry will be that Bush. 

Now I just wish we could get Osama on video tape telling us who he wants for the next U.S. President.