Joe is having a hard time of it up there in Connecticut.  Seems Ned Lamont is giving him a surprise challenge for the Democratic nomination. 

Joe's reaction?  He's going negative.  In June.  In a primary.  What does Lieberman know that we don't?

Joe has apparently pushed the panic button.

He has "gone negative" with two TV ads that are harsh and mean spirited.

Usually incumbent senators regard primary challengers with Olympian detachment and bemusement. (At least that is the public pose.)

Lieberman is trying to take Lamont out.