President Donald Trump has granted federal immigration agents "total authorization" to defend themselves following clashes with protesters during a recent enforcement operation at a cannabis farm in California.

Trump was also quick to criticize the Federal Emergency Management Agency's response to both disasters, and as president, he has said he wants to "wean off" FEMA and phase out the agency in an effort to shift more responsibility for recovery to states.

The president and first lady visited Kerrville to meet local officials and families of the victims of the recent flooding. Trump promised federal support, but his team emphasized the state's role.

Trump and first lady Melania Trump will arrive in Texas and participate in an aerial tour of the flooding site, which killed at least 120 people and more than 170 remain missing. The president will also participate in a roundtable discussion with first responders and local officials.