Romney is rolling the dice on a bet that voters crave “substance” — in this case, a deep debate about the deficit and entitlement cuts that Romney himself has mostly dodged up to this point…

The 42-year-old Wisconsin congressman “knows the game — he knows math — he knows exactly what the country needs,” said Alan Simpson, the former Republican senator from Wyoming Obama tapped to co-chair his deficit commission.

“There will be an adult conversation, therefore the children will throw emotion, fear, guilt, and racism on him,” he added. “They will bomb him, bomb him, shell him coastline and bunker, and he will survive. He has facts. He uses math. He’s damn good. He’s excellent.”