The Supreme Court on Thursday allowed the Biden administration to end a Trump-era immigration policy that required migrants seeking asylum to remain in Mexico while their cases are reviewed, ending a year-long legal fight over a policy critics say contributed to a humanitarian crisis on the border. Chief Justice John Roberts wrote for a 5-4 majority. He was joined by Associate Justice Brett Kavanaugh and the court's liberals. President Donald Trump's administration implemented the "remain in Mexico" policy, also known as Migrant Protection Protocols, in January 2019 as part of its effort to curb immigration. It requires migrants from Central American and other nations seeking asylum to wait in Mexico for their claims to be reviewed. President Joe Biden rescinded the program last year. Texas and Missouri sued, asserting the Department of Homeland Security didn’t follow the law when it unwound the program because it didn’t explain its reasoning for doing so. The Biden administration never disputed that it is required by law to detain those immigrants. The question was what to do with those people when Congress hasn't provided the money to carry out the requirement.