Here’s my theory of where Obama got his slogan, “Change we can believe in.”

A heavy-set staffer was going through his workout from the Momentum Fitness and Weight-loss System.

On the side of the box is the phrase, “Believe … You Can Change!”

As he went through his paces, he thought, “Believe … change … believe … change … believe.”

“I’ve got it!” he eureked.

He interrupted his workout, grabbed his cellphone, punched in the numbers and yelled, “Barry, I’ve got your campaign slogan: ‘Change we can believe in!'”