Sen. Tim Kaine is hoping Congress will authorize the use of force.
Sen. McCain said others also opposed the choice of Elissa Slotkin.
The former vice president said the CIA "ought to be decorated, not criticized."
A spokesman said embassies have taken "prudent" steps to brace for possible violence.
"The world knows we tortured," the senator says.
Having put forth a nominee for Defense secretary, it's time to assess Obama's record.
Kerry will testify before the Senate Foreign Relations Committee on Tuesday.
“It’s not meant to be the definitive report,” said Rep. Mike Rogers (R-Mich.).
Officials said the detainees were unanimously approved for transfer after a review.
Vice President Joe Biden says he "can only imagine" how Luke Somers' parents feels.
Intelligence officials are piecing together what happened that sabotaged the rescue attempt.
As many as 1,000 more than expected will be in the country early next year.
This is expected to be Hagel's last trip abroad as Defense secretary.
The House on Thursday easily passed the $585 billion defense authorization bill.
Josh Earnest said "there was a very limited window for action" to save Luke Somers.
Commanders have been warned that the release "could cause unrest."
Sen.-elect Tom Cotton said the mission was worth the risk, despite hostage's death.
Lawmakers are racing to wrap up work on national security issues, including military funding.
The U.S. has to transfer detainees held in a prison in Afghanistan.
“I commend the president for acting," Rep. Mike Rogers (R-Mich.) said.
Lawmakers set to use last days of lame duck to pass bill for veteran suicide prevention.
"As friends, we have an obligation to speak honestly," Vice President Biden said.
Pakistani military killed al Qaeda chief tied to a plan to bomb the New York City subway.
Defense experts predict Obama’s pick to lead the Pentagon will want to leave his own mark.