Sen. Hillary Rodham Clinton said yesterday she would end the Iraq war as president if the conflict was still raging when she took office. "If we in Congress don't end this war before January 2009, as president, I will," the New York Democrat said at the Democratic National Committee Winter Meeting here. Iraq and economic populism were by far the dominant issues among the half-dozen presidential contenders who sought their party leadership's support at the DNC meeting. Mrs. Clinton and her chief rivals repeatedly brought the overflow crowd at the Washington Hilton to its feet in cheering each denunciation of...