EAST HAVEN, Conn. - Two days before the Democratic primary, U.S. Sen. Joe Lieberman made what he called his closing argument on his record Sunday as he tries to gain ground on upstart challenger Ned Lamont, who is leading in the latest poll. Lieberman, a three-term incumbent and his party‘s vice presidential candidate in 2000, has been dogged by liberal Democrats angry at him for supporting the war in Iraq . Lamont, a political newcomer and founder of a cable company, has capitalized on the war‘s unpopularity in Connecticut by accusing Lieberman of being too close to Republicans and President...