Democratic Party Divided on IraqFriday July 7, 4:58 PM Intent on seizing control of Congress, Democrats want to keep the focus on President Bush's missteps in Iraq. Yet the war is fracturing the party in a handful of House and Senate races. Senate primary fights in Connecticut and Washington state as well as a few House contests pit the party's liberal wing _ proponents of candidates who want an immediate end to the conflict _ against moderates favored by Democratic leaders in Washington. Arguably the most high-profile and contentious case is Connecticut, where three-term Sen. Joe Lieberman is under siege...