On the heels of a marathon Oversight and Government Reform Committee hearing Wednesday on the U.S. consulate attack in Benghazi, Libya, Speaker John A. Boehner, R-Ohio, said he planned to push the White House to release sensitive emails that could further illuminate what transpired.

He demurred, however, on whether Congress should convene a special investigative committee to probe the events of Sept. 11, 2012, that killed four embassy officials including U.S. Ambassador to Libya J. Christopher Stevens.

“I have confidence in our five committees that are doing this investigation,” Boehner said at a Thursday morning news conference. “They understand very clearly we have a very serious and solemn obligation to get to the truth of what happened.”

And as for whether Boehner will push for Congress to issue subpoenas to former Secretary of State Hillary Rodham Clinton and other officials in office at the time of the attack, he said he would let committee chairmen “make the decisions about what our next steps are.”

Wednesday’s all-day hearing was proof that sustained involvement in uncovering the circumstances surrounding the attack would bear fruit, Boehner said. “The Government Reform and Oversight Committee did a fabulous job in a very long day of hearings of eliciting more information that, frankly, we haven’t had in the in the past eight months,” he said.