The Obama administration's point man on the Gulf oil spill says the government doesn't have the expertise or the equipment to take over the cleanup job from BP.
Coast Guard Commandant Thad Allen, who is heading the federal response, has rejected the notion of removing BP from the task. Allen addressed a White House briefing.
The White House is facing increasing questions about why the government can't assert more control over the aftermath of the April 20 rig explosion.
All of BP's attempts to stop the leak have failed and millions of gallons of crude are now coating birds and other wildlife and fouling Louisiana marshes.
BP's next plan is another technique never tested 5,000 feet underwater: a "top kill," in which heavy mud and cement would be shot into the blown-out well to plug it up. BP gives it a 60-70 percent chance of success.