But it's easy to imagine the arguments that liberals would have discovered against, say, a sweeping payroll tax holiday it's undercutting Social Security!

但自由派若想找茬可就太容易了，比如说，若麦凯恩打算彻底减免工资税，自由派们肯定会高呼：这是削减社会保障啊！

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The payroll tax, used to support the social security system, has grown substantially in recent years and is now the second biggest revenue raiser at about 30%.

用以资助社会保障制度的工资税近些年来大为增加，如今已经成了第二个大税源了—约占30%。

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The current Social Security payroll tax is 12.4% (there is an additional 2.9% for Medicare).

FORBES: Fact and Comment

Pete Domenici, R-New Mexico, would eliminate the 12.4 percent Social Security payroll tax for one month.

CNN: Senate Republicans propose payroll tax holiday

Second, Forbes ignores the 12.4% Social Security payroll tax (split between employer and employee).

FORBES: Magazine Article