Updated 12:15 p.m. ET, 6/18/2014
(CNN) - While Hillary Clinton said Tuesday “there are still some unanswered questions” on the deadly 2012 Benghazi attack, Sen. Ted Cruz argued the former secretary of state is blocking those questions from being answered.
“Secretary Clinton from the beginning has stonewalled on this rather than acting as a partner getting to the bottom of what happened,” the Texas Republican said on CNN’s “Erin Burnett OutFront.”
Cruz was responding to Clinton’s interview during a CNN town hall, in which she said she was “very pleased” that a key suspect, Ahmed Abu Khatallah, had been captured by U.S. special forces this week, marking a major development in the aftermath of the attack nearly two years ago.
Four people, including the U.S. ambassador to Libya, were killed in the terror assault against a U.S. compound in Benghazi, Libya, on September 11, 2012.
An independent review of the incident found "systemic failures and leadership and management deficiencies" at the State Department, which was run by Clinton at the time. Four employees were reassigned.
The former secretary of state has since said she ultimately takes responsibility for the safety of diplomatic personnel, but she has also argued there’s nothing she could have personally done to prevent the attack, saying she relied on experts to implement security protocol.
As Clinton weighs a presidential bid, the attack has also become a political flashpoint. Congressional Republicans have launched their own investigations, with the latest effort being the formation of a House select committee to focus on the issue.
Clinton agreed Tuesday “there are still some unanswered questions.”
“It was, after all, the fog of war. But I'm absolutely convinced that the United States and all of our various agencies with all of our professionals including the Congress is you know, piecing together the best information we can find,” she said.
In her new book, “Hard Choices,” she accused Republicans of exploiting the deadly attack and playing politics.
“The truth isn't partisan,” Cruz said Tuesday. “There are basic questions that haven't been answered, and she views it as criticism.”
“She's not trying to get answers,” he continued. “She's trying to block the answers from ever being answered.”
He also attacked her for arguing in a recent interview that the Taliban detainees who were released in exchange for Army Sgt. Bowe Bergdahl last month aren't a threat to the United States.
On the growing violence in Iraq, Cruz hit Clinton for not totally ruling out the idea that the U.S. could team up with Iran to stop the advances by militants from the Islamic State in Iraq and Syria, or ISIS.
"I am not prepared to say that we go in with Iran right now until we have a better idea what we're getting ourselves into," Clinton said Tuesday on CNN. "What they want to do in Baghdad is basically to envelope (Prime Minister Nuri al-) Maliki in the Iranian embrace, maybe even use their own troops in Iraq as they did in Syria. That is a very difficult position to put the United States in."
While ISIS is an American enemy, Cruz said, the "regime in Iran is an enemy as well."
"That was the most surreal moment of Secretary Clinton's interview," he said, referring to her answer.
A spokesman for Correct the Record, the communications and rapid response arm of a pro-Hillary Clinton super PAC, hit back against Cruz, saying the senator "should be ashamed to play politics on the backs of four Americans killed in the service of their country.”
“Secretary Clinton has taken responsibility, action, and been fully and publicly transparent as she answered questions before Congress and made the independent ARB investigation public, making it one of the most transparent internal reviews in State Department history," said Adrienne Elrod, the group's communications director.