Nim Kidd, chief of the Texas Division of Emergency Management and representatives from the Upper Guadalupe River Authority are expected to testify.

The Federal Emergency Management Agency’s acting leader has adamantly defended the federal government’s response to historic flooding in Texas earlier this month, saying lawmakers’ attacks on the agency’s actions were unwarranted.

Authorities determined that three people are still missing from the floods, a sharp drop from the approximately 100 people authorities had previously said were unaccounted for.