Reply #2: But I think that he caucuses with the Dems for organizational purposes

[Hippo_Tron]

I don't give a shit whether or not he does party fundraisers for the dems and all that stuff (which is what party affiliation really amounts to these days). The bottom line, as you seem to be hinting at, is that he will be a very good liberal senator who will fight for our values even though he might not share our party affiliation. He will also caucus with the party that is certainly the lesser evil.