The U.S. Secret Service forced out three employees amid an investigation into misconduct involving prostitutes in Cartagena, Colombia, ahead of President Barack Obama’s visit to the Summit of the Americas. The case drew scrutiny of the agency’s judgment and leadership, as well as political criticism during an election year.

Investigators examined allegations that 11 Secret Service employees and about 10 military personnel took part in a night of heavy drinking and visits to a strip club, with some bringing prostitutes back to their hotel. The incident came to light after a dispute over payment on April 12 attracted the attention of hotel staff and Colombian authorities. The Secret Service recalled the 11 employees and replaced them before Obama arrived. Eight remained suspended with their security clearances lifted after three employees were forced out.

Two of those facing dismissal were experienced supervisors David Chaney and Greg Stokes, who had been sent to oversee members of the advance security team. Chaney retired under pressure, while Stokes was notified that he would be fired and could contest the charges. Their attorney, Lawrence Berger, said the investigations were incomplete and that any judgment about their roles was premature. He maintained that nothing reported had harmed their mission or the president’s visit.

Attention also turned to Chaney’s Facebook posts about his work protecting Sarah Palin during the 2008 campaign. In a comment accompanying a photograph, he joked that he had been “checking her out.” Palin called the remark embarrassing and responded, “You’re fired!” She also portrayed the scandal as a sign of poor government management.

The White House expressed continued confidence in Secret Service Director Mark Sullivan and said the president’s security had never been compromised. Spokesman Jay Carney urged patience while investigations continued. Congressional leaders condemned the conduct, and lawmakers briefed on the case predicted further dismissals. Some Republicans questioned agency leadership and Obama’s management, while Democrats stressed the need for accountability without judging all Secret Service personnel by the actions of those involved.