NEW YORK — An immigration appeals board has denied Mahmoud Khalil's latest bid to dismiss his deportation case, a largely expected ruling that brings the former Columbia University graduate student and Palestinian activist one step closer to re-arrest and possible expulsion. The Board of Immigration Appeals issued the final order of removal on Thursday, according to Khalil's lawyers. The board's rulings are not public, and an inquiry to the U.S. Department of Justice was not immediately returned. Khalil said he was not surprised by the ruling, which he called "biased and politically motivated." His attorneys said he cannot be lawfully...