Though shifts in demand and reduced production by some major producers have influenced oil prices, investor behavior is also increasing market volatility.

The Obama administration says its 2009 stimulus package saved jobs and boosted growth, but Republicans and some economists worry it dampened consumer and business spending and added to long-term debt.

The division of Iraq’s oil wealth is an important obstacle to a power-sharing deal. At issue is whether revenues should be regionally or centrally controlled.

Public disapproval of the Iraq war is starting to create fissures among Republicans and posing challenges for Democrats seeking to balance national security and political gains .

President Bush’s review of U.S. Iraq policy may involve adjustments to broader U.S. strategy in the Mideast. Bush is hearing proposals ranging from a boost in combat forces to engaging Iran and Syria…