From CBS News' John Bentley:
(TAMPA, FLA.) – Attempting to change the subject away from the economy and back to national security, John McCain questioned whether Barack Obama could serve as an effective commander-in-chief after a meeting with his national security advisers.
"They question whether my opponent in this election has the wisdom or judgment to serve as commander in chief," McCain said.
"Our enemies' violent ambitions must still be prevented – by American vigilance, by diplomacy and cooperation with our partners, and by force of arms as a last resort."
McCain said Obama was unprepared to deal with America's enemies, repeating his oft-told line that his running mate, Joe Biden, has said a crisis will occur if Obama is elected.
"The question is whether this is a man who has what it takes to protect America from Osama bin Laden, al Qaeda, and other grave threats in the world," McCain said.
"He has given you no reason to answer in the affirmative."