LOS ANGELES (AP) — Immigrant-rights advocates asked a federal judge to order the release of parents separated from their children at the border, as dozens of demonstrators decrying the Trump administration’s immigration crackdown were arrested Tuesday at a rally ahead of a Los Angeles appearance by Attorney General Jeff Sessions. The court action was brought by the Los Angeles-based pro bono law firm Public Counsel on behalf of three Central American mothers whose children were taken from them by U.S. authorities in May.