Earlier this week, the Congressional Budget Office released its revised estimates of what Obamacare will cost, now that the Supreme Court has weighed in. As I read the report, it occurred to me to ask: how have the CBO’s estimates changed over time? It turns out that, even when you compare the years that are common to each CBO report, a clear trend emerges. Today, the CBO believes that Obamacare will spend more money, raise more tax revenue, and reduce the deficit less than the agency thought in 2010. And things could get worse.