此外，2013年谁能入主白宫、税率和支出水平会如何、债务上限是否会引发又一次政府关门、政治扯皮导致的中期财政整合计划无法实施是否会引发主权评级的再次下调，这些方面的不确定性也会对支出和增长形成冲击。
So will uncertainty about who will be President in 2013; about tax rates and spending levels; about the threat of another government shutdown over the debt ceiling; and about the risk of another sovereign rating downgrade should political gridlock continue to block a plan for medium-term fiscal consolidation.