President Donald Trump lashed out at a reporter Friday, suggesting she is "evil," after she asked a question about whether the warning alert system for the devastating floods worked as well as it could have.

Twice, the Texas Division of Emergency Management turned down Kerr County's requests for money to improve flood warnings.

Texas special session called to address flood warning failures and emergency response after Hill Country flooding caused more than 100 deaths.

While he’s been in communities after hurricanes and tornadoes, President Trump said the devastation he saw after an aerial tour of the flood-ravaged Texas Hill Country on Friday was different.

When deadly floods swept through Texas, the National Weather Service issued a series of warnings that should have automatically triggered alerts to be sent to cellphones as the Guadalupe River began to rise.

Following this weekend's devastating Texas floods that killed more than 100 people, and left at least two dozen still missing, outdoor warning sirens are now getting renewed attention.

State and local officials in Texas have come under scrutiny over the lack of sirens in place to warn people of impending flash flooding.

Texas officials are being questioned about warning systems ahead of the deadly floods. As NBC News' Priscilla Thompson reports, Kerr County doesn't have a county-wide siren warning system in place.