premise: The CBO said very clearly that if you were to adopt the president's plan, there would be a $2 trillion hole in Social Security, because today's workers pay in to the system for today's retirees. And the CBO said -- that's the Congressional Budget Office; it's bipartisan -- they said that there would have to be a cut in benefits of 25 percent to 40 percent.
hypothesis: The CBO does not support the presidents plan
reason: It doesn't say if they support it or not, they just said there'd have to be cuts. 