WASHINGTON (AP) — President-elect Obama plans to use his executive powers to make an immediate impact when he takes office, perhaps reversing Bush administration policies on stem cell research and domestic drilling for oil and natural gas. John Podesta, Obama’s transition chief, said Sunday Obama is reviewing President Bush’s executive orders on those issues and others as he works to undo policies enacted during eight years of Republican rule. He said the president can use such orders to move quickly on his own. “There’s a lot that the president can do using his executive authority without waiting for congressional action, and I think we’ll see the president do that,” Podesta said. —-Contact The Daily Reveille’s news staff at [email protected]