Is this a temporary or permanent position? inderal 10 mg CBO's "extended baseline" projection assumed – consistent with existing laws for taxes and spending – that policymakers would let the tax and spending changes that were scheduled to take place at the end of 2012 (the famous "fiscal cliff" take effect. Its "alternative fiscal scenario" assumed they would not and would, in fact, continue to enact tax cuts in order to keep revenues from rising above 18.5 percent of GDP, would change Medicare law substantially to undo Obamacare cost-control measures and would reverse the budget cuts enacted since 2010.