Republican states seek to preserve Trump-era U.S. border curbs

WASHINGTON, Nov 22 (Reuters) - A coalition of states with Republican attorneys general took legal steps on Monday to retain pandemic border curbs recently ruled unlawful by a U.S. judge, aiming to preserve a policy that lets the government expel hundreds of thousands of migrants.Fifteen states asked U.S. District Judge Emmet Sullivan to let them join litigation over the policy, known as Title 42, which has been…