Erin Burnett OutFront -

Clinton, Johnson in testy exchange over Benghazi: "I was surprised by the secretary's reaction"

U.S. Secretary of State Hillary Clinton testified in front of both chambers of Congress Wednesday - facing questions  over the September 11th terror attack in Libya that killed four Americans, including U.S. Ambassador Christopher Stevens.

Republican Senator Ron Johnson of Wisconsin, member of the Senate Foreign Relations Committee had a heated exchange with Clinton during the hearing and is OutFront exclusively with Erin Burnettt.

Clinton takes on Benghazi critics, warns of more security threats

At times angry and choked with emotion, Secretary of State Hillary Clinton on Wednesday took on Republican critics of her department's handling of the September terrorist attack in Libya that killed the U.S. ambassador and three other Americans, but repeatedly distanced herself from a direct role in specific situations.

"As I have said many times since September 11, I take responsibility," Clinton told the Senate Foreign Relations Committee at the first of two long-anticipated congressional hearings Wednesday on the attack that became a major issue in the November presidential election.

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