It's an interesting question. Romney is under age 65, which means that he would have to obtain private health insurance. He jokes that he is unemployed, which means he may have to purchase it on his own. Or he may get it as a retiree benefit from Bain Capital.
The question is interesting because Romney is so wealthy that to spend his money on health insurance might seem like a waste. (Of course, Romney may be very risk averse, and a man to whom $10,000 is a small wager probably isn't going to notice a $20,000 health insurance premium. But Romney could pay for whatever medical care he and his wife -- and his children, and his grandchildren -- could possibly need.) On the other hand, if Romney doesn't have private health insurance, it would look bad that he forced other people to buy it.
Moreover, Romney turns 65 on March 12, meaning he becomes eligible for Medicare on March 1. He likely received his Medicare card in the mail two months ago. If Romney does not enroll in Medicare, it would again look bad that he who forced others to purchase health insurance is opting not to obtain health insurance himself. But if he does enroll in Medicare, it’s worth asking whether the 99 percent should subsidize people like him.