The Obama administration’s chief actuary at the Centers for Medicare and Medicaid Services (CMS) notified Republican leaders Saturday that the “very tight time frame” and “complexity” of the Democrats’ health spending bill would prevent them from fully analyzing the costs and efficacy of the bill before the House voted on the legislation. The letter was in response to a request from House and Senate Republicans. The Chief Actuary, Richard S. Foster, wrote: “In your letter, you requested that we provide the updated actuarial estimates in time for your review prior to the expected House debate and vote on this legislation on March 21,2010. I regret that my staff and I will not be able to prepare our analysis within this very tight time frame, due to the complexity of the legislation.”