“President Joe Biden on Thursday held his first official press conference since taking office in January.

Biden faced tough questions on his administration’s response to a rise in unaccompanied minors arriving at the U.S.-Mexico border. The president said his administration is working to safely house children, calling the conditions they face in overcrowded facilities “unacceptable.”

Biden said he would grant media access to the facilities, but declined to give an exact date. He dismissed questions about whether his policies were encouraging families to send their children on the perilous journey.

Biden said the increase in migration is rooted in difficult conditions in Central America, and blamed the overcrowding at U.S. facilities on former President Donald Trump.

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