Republicans are aiming to have the full Senate vote on the tax plan as early as this week, but the new CBO analysis showing large, harmful effects on the poor may complicate those plans. CBO also said the bill would add $1.4 trillion to the deficit over the next decade, a potential problem for Republican lawmakers worried about America's growing debt.
Democrats have repeatedly slammed the bill as a giveaway to the rich at the expense of the poor. In addition to lowering taxes for businesses and many individuals, the Senate bill also makes a major change to health insurance that CBO projects would have a harsh impact on lower-income families.