"The state and locals came up with a plan on emergency dredging barrier islands well over two weeks ago. For over two weeks, the [Army Corps of Engineers] and other federal agencies dragged their feet. Then, they approved moving forward with 2 percent of that plan," Vitter said.
Browner defended the administration on NBC.
"The president has been in control from the beginning. The rig fell on April 22nd. A number of us joined the president in the Oval Office that evening to fully brief him," Browner said. "Since that time he's been up to date, current. He knows what's going on. He's in charge.
"We obviously have Admiral [Thad] Allen, the incident commander -- the national incident commander who is watching this on an hour-by-hour basis. I'm the point person in the White House. But we also have our cabinet fully deployed; everybody from Homeland Security, to DOD, to the EPA, to Interior, to NOAA. This is -- as I said -- this is a very, very large disaster. And we are deploying all of our resources."
Last week, Obama said he would take responsibility for stopping the oil leak.
"I ultimately take responsibility for solving this crisis. I'm the president and the buck stops with me," he said Friday.