Reasonable Democrats including the few that remain here in Washington have to be afraid right now. Very afraid. Ned Lamont’s thrashing of incumbent Senator Joe Lieberman in yesterday’s Connecticut primary signals the beginning of a leftwing jihad within the confines of the Democratic Party that could doom the aspirations of any but the most leftwing Democrats in the years ahead. The Lamont victory over a former vice presidential candidate of the party means one thing and one thing only. The wealthy but crazed inhabitants of the left wing fever swamps are taking over a party that has been trying to...