Ned Lamont is running against Joe Lieberman in the Democratic Primary in Connecticut. His campaign just released a new ad.
It seems to me to be a form of a Public Service Announcement, warning that if you run against a hawkish Democrat, Markos Moulitsas and his Daily Kos band will break into your house and surround you with a creepy, not-quite-right enthusiasm.
Notice that the screen grab that they feature on his web page displays Kos himself, staring through the window like a stalker.