Meanwhile, acting Homeland Security Secretary Elaine Duke has come under fire for comments she made on Thursday.
She called the relief effort under control, saying, “It is really a good news story, in terms of our ability to reach people.”
That prompted the San Juan mayor to tell CNN the island’s recovery is “not a good news story.”
“This is a ‘people are dying’ story,” Carmen Yulin Cruz said.
Brown said he guarantees FEMA Administrator Brock Long understands exactly how dire things are in Puerto Rico. However, as you go up the food chain in any bureaucracy, people are going to say stupid things, he said.
“That was a stupid thing for Elaine Duke to say. You are in the middle of a crisis. You have a humanitarian disaster. You don’t talk about good news stories. You talk about what you’re doing.”
— CNBC’s Jacob Pramuk contributed to this report.