Al Gore practically laughed at Diane Sawyer during a live interview on Good Morning America today.

He critiqued the media more than once, beginning with the big "Race to '08" logo in the background on the GMA set. "That's not what this is about," he insisted.

Sawyer kept coming back to the campaign, even as she admitted she was doing exactly what Gore condemns in the book: "Not to fall into your thesis that the press only wants the horserace of a political campaign, but--"

"But back to the horserace," Gore mocked.

"But back to the horserace!," Sawyer said as Gore laughed.

Then later, after Gore finished describing a central point in his new book "The Assault on Reason," Sawyer went back to her original line of questioning.

After promising to "dig deeper" later, in an as-yet-unaired segment, Sawyer looked off-camera and said "to dig not very deep, at my peril here, I just want to say one more time. Donna Brazille, your former campaign manager, says 'if he drops 25 to 30 pounds, he's running.' Lost any weight?"

Gore laughed heartily. "I think millions of Americans are in the same struggle I am on that one," he responded. "But listen to your questions. The horserace, the cosmetic parts of this -- look, that's all understandable and natural. But while we're focused on Britney and K-fed and Anna Nicole Smith and all this stuff, meanwhile, very quietly, our country has been making some very serious mistakes that could be avoided if we, the people, including the news media, are involved in a full and vigorous discussion of what our choices are."

After Sawyer tossed to a segment about gas prices, she taped a continuation of her interview with Gore. It'll air at some point in the future...