TOM RAUM and ALICIA CALDWELL , Associated Press
Across the Capitol, House Homeland Security Committee Chairman Peter King, R-N.Y., said Monday he is confident that the investigation is moving forward as "countless agents" interview hotel maids and other workers, women involved in the incident and other Secret Service employees in Columbia.
"I think we expect in the next day or so to see several more agents being forced to leave," King told NBC's "Today Show."
King has sent Secret Service Director Mark Sullivan a list of 50 specific questions, including a request for "a comprehensive, minute-by-minute timeline."
"Every possible lead is being examined," King told NBC's "Meet the Press" on Sunday.
So far, the scandal involves 12 Secret Service employees and 11 members of the military.
US Secret Service prostitution scandal - more sackings expected
independent.ie
Mr Axelrod told CNN's "State of the Union" that he always felt the agents were willing to do anything to protect the president and the people around him. He called the agents' conduct in Colombia "really disappointing."
"I was surprised by it," he said, adding, "You know, people being what they are, you're never totally surprised. In any organisation, things can go wrong." Mr Axelrod worked at the White House before leaving last year to work full time in Mr Obama's re-election campaign headquarters in Chicago.
He later told NBC that "on the whole, the Secret Service does heroic work. This is quite disturbing. We have to get to the bottom of this, and I'm sure we will."
Secret Service prostitution scandal not going away any time soon
CNN Wire Staff
White House Press Secretary Jay Carney, speaking at a daily briefing Friday, said he has no reason not to believe that the scandal involved "anything but the agents and the military personnel," criticizing those seeking to politicize the issue.
"It is preposterous to politicize the Secret Service," said Carney, responding to a question regarding former Alaska Gov. Sarah Palin and other Republicans' criticism of the Obama administration. "What they're doing is trying to turn these incidents, one that's still under investigation, into political advantage."
White House staff have not been implicated in the controversy, which emerged last week.
3 more agents depart Secret Service in prostitution inquiry
Ken Dilanian, Tribune Washington Bureau
In all, 12 Secret Service employees — either agents from a counter-assault team or uniformed officers who work with bomb-sniffing dogs or magnetometers — and 11 members of the military are alleged to have engaged in heavy drinking, visited strip clubs and hired prostitutes in the resort city of Cartagena, Colombia.
The alleged carousing occurred on the night of April 11, two nights before Obama arrived to participate in last weekend’s high-profile Summit of the Americas.