In a bid to clear the way for a controversial Senate nominee, the Obama administration signaled it will publicly reveal a secret memo explaining its legal justification for using drones to kill American citizens overseas.
The Justice Department, officials say, has decided not to appeal a Court of Appeals ruling requiring disclosure of a redacted version of the memo under the Freedom of Information Act.
The decision to release the documents comes as the Senate is to vote Wednesday on advancing President Obama's nomination of the memo's author, Harvard professor and former Justice Department official David Barron, to sit on the 1st U.S. Circuit Court of Appeals in Boston.
Sen. Rand Paul, R-Ky., has vowed to fight Barron's confirmation, and some Democratic senators had called for the memo's public release before a final vote. Paul reiterated his opposition on Wednesday.
"I cannot support and will not support a lifetime appointment of anyone who believes it's OK to kill an American citizen not involved in combat without a trial," Paul said in the Senate.
But a key Democratic holdout against Barron's nomination, Sen. Mark Udall D-Colo., announced Tuesday night he will now support Barron because the memo is being released.
"This is a welcome development for government transparency and affirms that although the government does have the right to keep national security secrets, it does not get to have secret law," Udall said in a statement.
Sen. Ron Wyden, D-Ore., had also been pushing for public disclosure of Barron's writings and was one of several Democrats who had been refusing to say whether he'd vote for confirmation without it. "That's certainly very constructive," Wyden said when told of the decision not to appeal.
Wednesday's expected procedural vote would allow the Senate to move ahead with a final vote on Barron on Thursday. "I think we'll be OK," Senate Majority Leader Harry Reid, D-Nev., said earlier Tuesday.
Anwar al-Awlaki, an Al Qaeda leader born in the United States, was killed after being targeted by a drone strike in Yemen in September 2011. Some legal scholars and human rights activists complained that it was illegal for the U.S. to kill American citizens away from the battlefield without a trial.
The White House had agreed under the pressure to show senators unredacted copies of all written legal advice written by Barron regarding the potential use of lethal force against U.S. citizens in counterterrorism operations.
Until now, the administration has fought in court to keep the writings from public view. But administration officials said that Solicitor General Donald Verrilli Jr. decided this week not appeal an April 21 ruling requiring disclosure by the 2nd U.S. Circuit Court of Appeals in New York and that Attorney General Eric Holder concurred with his opinion.
The release could take some time, since the redactions are subject to court approval. And the administration also is insisting that a classified ruling on the case also be redacted to protect information classified for national security, but not the legal reasoning, one of the officials said.
The drone strike that killed al-Awlaki also killed another U.S. citizen, Samir Khan, an Al Qaeda propagandist. Al-Awlaki's 16-year-old son, Abdulrahman, was killed the following month in another drone attack.
The American Civil Liberties Union and two reporters for The New York Times, Charlie Savage and Scott Shane, filed a FOIA suit. In January 2013, U.S. District Court Judge Colleen McMahon ruled that she had no authority to order the documents disclosed, although she chided the Obama administration for refusing to release them.
But a three-judge appeals court panel noted that after McMahon ruled, senior government officials spoke about the subject. The panel rejected the government's claim that the court could not consider official disclosures made after McMahon's ruling, including a 16-page Justice Department white paper on the subject and public comments by Obama in May in which he acknowledged his role in the al-Awlaki killing, saying he had "authorized the strike that took him out."
The ACLU urged senators in a letter Tuesday not to move forward on the confirmation vote until they have a chance to see any Barron memos on the administration's drone program, not just those involving U.S. citizens.
Paul issued a statement Tuesday saying he still opposes Barron's nomination. "I rise today to say that there is no legal precedent for killing American citizens not directly involved in combat and that any nominee who rubber stamps and grants such power to a president is not worthy of being placed one step away from the Supreme Court," Paul said in remarks prepared for delivery on the Senate floor Wednesday provided by his office.
The Associated Press contributed to this report