Karl Rove, in the Wall Street Journal, on the CBO report:

Voters likely won’t react well to the price tag of Mr. Baucus’s bill. [The] Congressional Budget Office (CBO) report pegs its cost at $829 billion over the next 10 years. The CBO report claims the bill won’t add to the budget deficit until 2015—but the bill only manages that feat by delaying benefits and imposing taxes and Medicare and Medicaid cuts up front.
The CBO report does shed some light on the cost for each person the Baucus plan would add to the ranks of the insured. CBO estimates the plan would insure about 29 million people. If that is right and if the total price tag is also accurate, the average cost per year per person for the seven-and-a-half years benefits will be in force during the program’s first decade would be $3,811. That compares favorably to private insurance. On average, a single person now pays $4,824 a year for health coverage and a family of four pays $3,344 per family member per year, according to the Kaiser Permanente Institute for Health Policy.
But the CBO numbers are almost certainly overly optimistic—there has only been one large-scale federal health program that has come in at or under its projected cost, the Medicare prescription drug benefit enacted under the previous administration, which is costing 40% less than estimated.

More here.