Herman Cain Says He'd Be Leading over Obama

But thinks Romney video being blown out of proportion

Herman Cain took a shot at Mitt Romney on Friday, stating that if he were the Republican presidential nominee, he would have a "substantial lead" over President Barack Obama.

"The reason is quite simple: I have some depth to my ideas," Cain told a crowd of more than 300 at the University of Florida as part of his "College Truth Tour."

Romney has faced widespread criticism within his own party for what some characterize as a failure to offer any specific ideas and running instead as simply the "anti-Obama." That seemed to change Monday, when his campaign announced a shift in strategy and pledged to lay out in more detail what a Romney presidency would look like.