The head of FEMA’s Urban Search and Rescue Branch has resigned, telling colleagues that the Trump administration’s disastrous response to the deadly flooding in Texas had driven him over the edge, CNN reported.

The decision was likely in part due to the agency's delayed response to the flooding disaster in Central Texas. Senior FEMA leader Ken Pagurek told colleagues this was the last straw after months of frustration over President Donald Trump's repeated efforts to eliminate the agency, CNN reported.