Updated

The lead investigator into the Secret Service prostitution scandal told Senate staffers that he was directed to delay the release of the report until after the 2012 election, according to a published report.

According to The Washington Post, David Nieland also said that he was instructed by his superiors in the Department of Homeland Security (DHS) inspector general's office to "withhold and alter certain information in the report of investigation because it was potentially embarrassing to the administration."

The Post also reported that senior White House aides were given information suggesting that a prostitute had stayed in the hotel room of a member of the White House's advance team, contrary to earlier denials that any member of the administration was involved.

Nearly two dozen Secret Service agents were disciplined or fired as part of the scandal, which began when Secret Service agents brought prostitutes into their hotel in Cartagena, Colombia ahead of President Obama's trip to the Summit of the Americas in April 2012. The Post reports that the Secret Service twice shared the findings of its own internal investigation with top White House officials, who concluded that the advance team member had done nothing wrong.

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