maria: i want to ask you about your timeline because we know or at least the public understands that you can't move forward on things like tax reform and some of the other priorities on the agenda without getting this done. so this really takes on that much more importance and tomorrow we will hear from the cbo in terms of its analysis. i want to get your take on that because people want to understand how significant you can get the costs down. i'm being told that the affordable care act, obamacare in general costs a trillion dollars more than the original cbo forecast, is that true? >> it is and, you know, cbo is the only referee that we are able to use, to allow to use and you have to go with numbers. they have been off on healthcare estimates a lot over the years, i would say and on other things. under obamacare they said it was doing to reduce the deficit and increased.