
Sen. John McCain, Arizona Republican, does a sound test for his speech on stage at the Republican National Convention, Tampa, Fla., Wednesday, Aug. 29, 2012. (Andrew Harnik/The Washington Times)

Then-Alaska governor Sarah Palin was introduced to America four years ago when Sen. John McCain of Arizona announced her as his Vice Presidential running mate. (Associated Press)

Then-Alaska governor Sarah Palin was introduced to America four years ago when Sen. John McCain of Arizona announced her as his Vice Presidential running mate. (Associated Press)

Beau Davidson, a Nashville-based recording artist, will perform his song "Blessed" Wednesday evening, slotted between speeches by Senate Minority Leader Mitch McConnell and Arizona Sen. John McCain, he told The Washington Times during an interview in Tampa, Fla., Tuesday, Aug. 28, 2012. (Andrew Harnik/The Washington Times)

Beau Davidson, a Nashville-based recording artist, will perform his song "Blessed" Wednesday evening, slotted between speeches by Senate Minority Leader Mitch McConnell and Arizona Sen. John McCain, he told The Washington Times during an interview in Tampa, Fla., Tuesday, Aug. 28, 2012. (Andrew Harnik/The Washington Times)

**FILE** Sen. John McCain (center), Arizona Republican and ranking Republican on the Senate Armed Services Committee, flanked by Senate Minority Whip Jon Kyl (left), Arizona Republican, and fellow committee member Sen. Kelly Ayotte, New Hampshire Republican, speaks Dec. 14, 2011, during a news conference on Capitol Hill to announce an effort to replace the defense sequester mandated as a result of the supercommittee's failure. (Associated Press)

Sen. John McCain, Arizona Republican, attends a news conference about the Convention of the Rights of Persons with Disabilities, Thursday, July 12, 2012, on Capitol Hill. (AP Photo/Jacquelyn Martin)

Sen. John McCain, Arizona Republican, attends a news conference about the Convention of the Rights of Persons with Disabilities, Thursday, July 12, 2012, on Capitol Hill. (AP Photo/Jacquelyn Martin)

ASSOCIATED PRESS From left, Sens. John McCain of Arizona, Saxby Chambliss of Georgia and John Cornyn of Texas are among GOP senators pressing Attorney General Eric H. Holder Jr. to name an independent counsel to probe national security leaks.