The lack of direct testimony from those on the ground has frustrated a number of congress members who have told CNN they are tired of the Benghazi affair being filtered through the memos prepared by staff and testimony of others who were not in Libya , or were there but have not had the opportunity to give firsthand accounts to elected members . California congressman raises questions for Benghazi hearing . Ambassador Christopher Stevens and three other Americans were killed in attack . The House Oversight Committee is investigating the attacks on U.S. diplomatic facilities overseas that left four Americans dead. Benghazi has become a political flashpoint between Republicans and Obama administration .
California congressman raises questions for Benghazi hearing . Ambassador Christopher Stevens and three other Americans were killed in attack . The House Oversight Committee is investigating the attacks on U.S. diplomatic facilities overseas that left four Americans dead. Benghazi has become a political flashpoint between Republicans and Obama administration .