A week before Congress is expected to finally hear from CIA contractors on the ground in Libya during the deadly Benghazi attacks, a Republican member said it is long overdue the American public learn the truth of "the murky events of September 11, 2012," that left a U.S. ambassador and three other Americans dead. "We know what the senior people have said but we don't know what the people who were on the ground are going to say and we need to get those answers," Rep. Devin Nunes (R-California) told CNN by phone Wednesday. In a letter to House Speaker John Boehner sent Wednesday, Nunes said if questions remain unanswered or "if some answers differ substantially from the established narrative and timeline of the attack, then it would be warranted to take new measures to complete the investigation and synthesize the information obtained by the Intelligence Committees and other committees investigating the Benghazi attack."
@highlight
California congressman raises questions for Benghazi hearing
@highlight
Ambassador Christopher Stevens and three other Americans were killed in attack
@highlight
Lawmakers have been pressing for witness accounts from the September 2012 attack
@highlight
Benghazi has become a political flashpoint between Republicans and Obama administration
The @placeholder letter also asserts there still is information lacking or discrepancies on other fronts, including: