“We are the hope of the future,” sayeth Obama. We can “remake this world as it should be.” Believe in me and I shall redeem not just you but your country—nay, we can become “a hymn that will heal this nation, repair this world, and make this time different than all the rest.” Obama’s Super Tuesday victory speech was a classic of the genre. Its effect was electric, eliciting a rhythmic fervor in the audience - to such rhetorical nonsense as “We are the ones we’ve been waiting for. (Cheers, applause.) We are the change that we seek.”
http://www.townhall.com/columnists/CharlesKrauthammer/2008/02/15/obama,_the_platitude_salesman
http://www.washingtonpost.com/wp-dyn/content/article/2008/02/14/AR2008021403105.html?wpisrc=newsletter

See also: Old Wine, New Bottle
“Much of his rhetoric is lighter than air—almost content-free. It’s the past versus the future, hope over fear, one nation not two, yes we can, turn the page, and so forth. But when you get past the music and really focus on the lyrics, Obama emerges as an utterly conventional, down-the-line liberal Democrat. He claims to be all about the future, but his policy ideas are about as modern as disco and the leisure suit.” http://www.townhall.com/columnists/MonaCharen/2008/02/15/obama_old_wine,_new_bottle