LOS ANGELES — Supreme Court Justice Amy Coney Barrett said Monday that judges are not deciding cases to impose a “policy result,” but are making their best effort to determine what the law and the Constitution require.In a nation splintered by partisanship and wracked by incivility, Barrett in remarks at the Ronald Reagan Presidential Library appeared to acknowledge that expected court decisions on reproductive rights and gun control would be seen through a political lens and lead to division. She urged Americans to “read …