Within the next two decades, the United States may barely need any oil from the Persian Gulf, due in large part to increased domestic production. That dramatic shift could shake the foundation of U.S. interests in the Middle East.
In Washington scandals, the question is usually what the White House knew.
But in the case of former CIA Director David Petraeus, lawmakers are asking why President Obama did not know about a federal investigation that had found evidence Petraeus was having an affair.