David Richardson had been on the job for six months. FEMA employees had questioned his ability to lead the agency.

David Richardson on Monday resigned as acting head of the Federal Emergency Management Agency, according to people familiar with the situation, ending a brief tenure leading an agency the administration had publicly expressed a desire to dismantle.

Current agency chief of staff Karen Evans will become the Trump administration's third acting head of the emergency management agency on Dec. 1.

FEMA’s top job is open as President Donald Trump’s administration considers major changes to the disaster response agency.

Richardson, who was first appointed in May after his predecessor's abrupt removal, has faced internal unease and public scrutiny-none more so than during the July floods in the Texas Hill Country, when FEMA's response teams came under fire for delays.