NEW : The Foreign Relations Committee backs limited U.S. military action in U.S. . State Department legal adviser says the Libya mission is limited in scope , exposure of forces . Key Republicans argue Obama has improperly circumvented the 60 days the Vietnam War . It requires the president to get congressional approval within 1973 after deploying military .
NEW : The Foreign Relations Committee backs limited U.S. military action in Libya . State Department legal adviser says the Libya mission is limited in scope , exposure of forces . Key Republicans argue Obama has improperly circumvented the 1973 War Powers Resolution . It requires the president to get congressional approval within 60 days after deploying military .