Senator Joe Lieberman wants the Obama administration to conduct an internal investigation to discover if any of the White House advance team were involved in the shenanigans in Cartagena.

National Journal:

In the midst of an investigation into alleged misconduct by Secret Service agents and U.S. military members in Colombia, the head of the Senate Committee on Homeland Security and Governmental Affairs said the White House should launch its own internal investigation into its advance staff on that same trip.

"The White House ought to be conducting its own internal investigation of White House personnel who were in Cartagena, just to make sure that none of them were involved in this kind of inappropriate behavior," Sen. Joe Lieberman, I-Conn., said on Fox News Sunday.

The expanding scandal has implicated 12 Secret Service agents and 10 U.S. military members in misconduct involving prostitutes while preparing for President Obama's trip to Cartagena, Colombia. All 12 of those agents had their security clearances revoked and, as of Friday, six had resigned, retired, or been fired.

Lieberman, who has been briefed on the investigation said that the agents' actions were troublesome because they ran counter to the ethic of the agency.

"From what we know of what was happening in Cartagena, they were not acting like Secret Service agents, they were acting like a bunch of college students away on spring weekend," he said, but later added that he still has confidence in Secret Service Director Mark Sullivan. Other lawmakers expressed similar support on Sunday.

However, the agents' behavior may also have been a security liability, Lieberman explained.

"It's more serious than just a frolic. History is full of cases where enemies have compromised people with security or intelligence positions with sex," he said.

It is not difficult to imagine advance team staffers mingling with Secret Service advance men. They probably know each other well, having worked together in the past on presidential trips. Is it impossible to say that a Secret Service employee casually mentioned to a White House staffer that there was going to be a party one night and that he and his mates were invited?

Given the history of this White House investigating itself, I think it's safe to say they've already looked into it and decided there was nothing to report - just like there were no meetings between Obama transition staffers and representatives of Rob Blagojevich when the impeached governor was trying to sell Obama's senate seat.

At least that's their story then and they are sticking to it.