A man masquerading as a member of Congress walked into a secure backstage area without being properly screened and spoke with President Obama at an awards dinner last fall. Five days later, a woman walked backstage unchecked at a gala dinner where Obama was a featured guest. Months after that, two people strolled unnoticed past a Secret Service checkpoint into the first layer of the White House grounds.

The incidents were among a half-dozen previously undisclosed security breaches since 2013 that were detailed in an extensive, bipartisan congressional investigation of the inner workings of the Secret Service.

In a critical report to be released publicly Thursday, House investigators describe the once-elite force as an “agency in crisis” that has failed to fix many of the deeply ingrained problems exposed last year amid a string of humiliating security lapses, according to a copy of the report obtained by The Washington Post…

Rep. Jason Chaffetz (R-Utah), chairman of the Oversight Committee, said the report should spur further action by the Obama administration.

“The situation is getting worse not better,” he said. “The president is in jeopardy, and he better personally get involved in fixing this.”