I wouldn't consider HHH a Socialist. IMHO, he was the last of the old-time populist liberals --- the kind of guy that LIEberman pretends to be.
HHH was a tough-ass Cold Warrior and as patriotic as they come. I disagreed with his economic beliefs, (which BTW were nearly identical to Nixon's) but he was not a radical leftist like Wellstone or a grubby divide & conquer race and class bating socialist like McCarthy or Mondale.