The payroll tax holiday. 后来在共和党的反对下取消了。

回答: 什么时候?哪一项减了?Manymore2015-01-28 13:20:56

The payroll tax holiday was enacted in 2011, which reduced the employee share of the Social Security payroll tax from 6.2 percent to 4.2 percent. The holiday was not renewed when it expired at the end of 2012 due to Republican's opposition.

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