The scrutiny on the agency comes as President Donald Trump has repeatedly questioned the necessity of FEMA and called for states to take a greater role in disaster response.

The head of FEMA’s Urban Search and Rescue branch, which runs a network of teams stationed across the country that can swiftly respond to natural disasters, resigned on Monday.

Urban Search and Rescue Chief Ken Pagurek quit over a new policy that led to delays in FEMA's response to the flooding in Texas on July 4, sources said.