WASHINGTON, Dec 14 (Reuters) - As Iraq prepared for its election, President George W. Bush on Wednesday vowed the United States will stay in Iraq "until victory is achieved" and he defended his decision to go to war. Bush gave the fourth in a series of speeches that the White House has used to try to explain his administration's strategy amid a drumbeat of criticism from Democrats who say Bush does not have a plan on Iraq. "An historic election will take place tomorrow in Iraq, and as millions of Iraqis prepare cast their ballots, I want to talk today...
