Mr. Obama held a 90-minute meeting with a bipartisan group of congressional leaders at the White House Tuesday to discuss Afghanistan. A senior administration official said the president assured lawmakers the policy review would be rigorous and deliberate, but move forward with a sense of urgency. The U.S. commander in Afghanistan, Army General Stanley McChrystal, has warned the U.S. could lose the conflict if more troops are not deployed to Afghanistan. He is expected to ask for an additional 30,000 to 40,000 troops to fight Taliban insurgents. Scoop: Just Say "NO" to the War in Afghanistan.