Iraq War Was Worth the High Cost, Says Sen. Joe Lieberman The Christian Science Monitor - St. Regis Hotel On Tuesday, December 13, 2011, Connecticut Senator Joe Lieberman joined the Monitor Breakfast for a conversation with reporters.Joseph Isadore "Joe" Lieberman is the senior United States Senator from Connecticut. A former member of the Democratic Party, he was the party's nominee for Vice President in the 2000 election. Currently an independent, he remains closely affiliated with the party.