Sen. Bill Cassidy, the Republican chairman of the Senate Health, Education, Labor and Pensions Committee, placed a hold Friday on four of President Donald Trump's nominees for federal labor-related positions.

The action follows the release Thursday of a scathing internal watchdog report detailing former Labor Secretary Lori Chavez-DeRemer's violations of federal workplace, travel, alcohol and ethics policies. The inspector general report described an inappropriately close and unprofessional relationship with a member of her security detail and recounted an incident at a strip club in which Chavez-DeRemer directed security personnel to throw cash at partially nude dancers.

"Now that the investigation is complete, we need answers," Cassidy said in a statement. "Members and staff were not briefed on the findings. That is unacceptable and disregards Congress's constitutional oversight role."

Cassidy added that the HELP Committee will not consider additional labor nominees until bipartisan members and staff receive a full briefing.

Chavez-DeRemer, a former Oregon congresswoman, resigned in April amid the inspector general probe that began after initial reporting on her conduct. The 44-page report substantiated multiple violations by her and four other former Labor Department officials based on interviews with 53 current and former employees.

The four nominees affected by the hold are Mike Doyle for the Occupational Safety and Health Review Commission, Walter Darr for the Federal Mediation and Conciliation Service, and Doug Ralph and Loren Sweatt for the National Mediation Board.

Trump's nominee to succeed Chavez-DeRemer, Keith Sonderling, has already cleared the HELP Committee and awaits a full Senate vote.

The developments underscore ongoing Senate scrutiny of executive branch appointments and the importance of congressional oversight in labor policy matters.