U.S. President Joe Biden’s administration is racing to deal with an increasing number of migrant children arriving at the U.S.-Mexico border, but it has limited options and “none are great,” one U.S. official said.

The best option would be smaller-scale shelters or foster homes, but finding and opening those sorts of spaces are longer-term projects, according to Leah Chavla, a senior policy adviser with the New York City-based Women’s Refugee Commission.

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