You know you're really rich...

Mitt Romney either doesn't know or refuses to say how many of his own millions he's put into his campaign.

Speaking to reporters in Johnston, Iowa, Romney, R-Mass., acknowledged he is "sure" he has put more of his own personal wealth into his campaign but would not provide an exact figure.

In the first nine months of 2007, Romney, who made a fortune in private business, contributed roughly $17 million dollars to his own campaign. He has spent at least $7 million of that figure in Iowa on a massive media campaign that includes a barrage of attack ads against his chief rival, former governor Mike Huckabee, R-Ark.

Eric Fehrnstrom, a Romney spokesperson, claims the former Massachusetts governor "does not know how much" he gave in the last three months of the year.

I thought he was such a great businessman whose big selling point was how on top of affairs he'd be.

I suspect he does know, but also knows that the amount is so huge as to turn people off and plays into Huckabee's charge that Romney is trying to buy the nomination.