I would say democrat. Better for the unions which is better for when they were more in charge. Also more government programs and incentives for them to take advantage of.
How about this century? Have to believe that with the rackets the Genoveses had in the housing boom that they benefited quite well from the 2008 Stabilization Act (government program!). You think they're the most powerful family today because they're just out hustling the other families on the street? Somebody was looking at the big picture, and it wasn't big city Democrats and unions they were looking to partner with.
I know it's fiction, but there was a real life basis in this:
"Dick Cheney for president...of the world" - Tony Soprano