The charity had its worst fundraising year since at least 2000.
Congressman Bennie Thompson, who asked the charity for details about cuts to services, says he is "troubled" by the lack of answers.
Confidential documents also raise questions about the accuracy of the Red Cross’ count of how many Haitians it helped, concluding the figures on one project were “fairly meaningless.”
“I still have a lot more questions for the Red Cross,” says Senator Charles Grassley.
Donors gave $312 million after the storm, but it’s not clear where exactly the money went.