Senate Majority Leader Harry Reid said Wednesday that Republican John McCain "doesn't have the temperament to be president."

The Nevada Democrat said his opinion of the Arizona senator is based serving with him for 26 years in Congress and claimed his view was privately shared by some Senate Republicans.

"I just think he doesn't have the temperament to be president," Reid told Las Vegas Sun columnist Jon Ralston during the taping of "Face to Face," in Denver on Wednesday. The show airs on a Las Vegas, Nev., cable channel.

"I've served with the man 26 years," Reid said. "Do I have the ability to speak with experience about someone who has abused everyone he's dealt with? Someone who does not have the temperament to be president, who's wrong on the war, wrong on the economy, wrong on nuclear waste. What am I supposed to do? Walk around talking about what a great guy he is? I don't believe that. .... "

"There isn't a Republican serving in the Senate that's happy he's the nominee. Now, they're all supporting him, but I'll tell you they have told me. I've had Republican senators tell me they don't think they'll vote for him," Reid said.

When Ralston asked if Reid thought it would be "dangerous" to let McCain be president, Reid answered: "Well, if you said it, I wouldn't correct you."

"Is that right?" Ralston asked. "You really think that?"

"That's right," said Reid, who predicted that Democrat presidential candidate Barack Obama would carry the battleground state of Nevada by 5 percentage points.

Bill Riggs, a spokesman for the Republican National Committee, said, "Barack Obama's own running mate knows he's not qualified to be commander in chief."