It is to laugh

Bullshit Moose and the Bullshit Moose Party, turds of a feather, smell together.

I'm just waiting for Joe Lieberman to start talking in the third person, then their symbiosis will be complete:

The Moose argues that the Joe Lieberman is invaluable to the donkey even as an independent.

Much of the left's animus toward Joe Lieberman is driven by the view that his partisan credentials are suspect. However, if anyone has paid his progressive dues it has been Joe Lieberman...

...The truth is that Joe is not just a good Democrat. He is the best Democrat in the tradition of Truman and JFK. There is no doubt that those two historical figures would be more comfortable in the Party of Lieberman than the Party of Kos.