UNDATED (CBS) -- There will be three separate Capitol Hill hearings today looking into the attack on the U.S. consulate in Benghazi. Everyone from the director of the FBI to think tank analysts will testify before Congress about what they know of the attacks. And now there's another name that can be added to tomorrow's witness list.
Former CIA director David Petraeus' will testify before congress tomorrow about the attack on the U.S. consulate in Benghazi.
Petraeus was scheduled to testify today before a house intelligence committee. But those plans changed after he resigned following his admission of an affair with his biographer Paula Broadwell.
Benghazi is at the center of another Capitol Hill battle. Senate Republicans say they will not accept a rumored replacement for Secretary of State Hillary Clinton. Sen. John McCain says, "We will do whatever's necessary to block the nomination."
Senators John McCain and Lindsey Graham say the UN ambassador was either lying or incompetent when she made this statement five days after the attack. UN Ambassador Susan Rice said on Face the Nation, "We do not have information at present that leads us to conclude that this was premeditated or pre-planned."
President Obama says the ambassador was presenting the intelligence information she was given. He challenged those who attacked ambassador rice. He says, "If Senator McCain and Senator Graham and others want to go after somebody, they should go after me."
Senator McCain accepted that offer. He says, "The President of the United States, the commander in chief, is the most responsible, and I hope the president has no illusions about our view of his responsibility."
McCain and Graham want a Watergate style committee to investigate the Benghazi attack.
President Obama says he has not yet determined whether he will nominate Ambassador Rice to be the next Secretary of State.