Updated: 11:07 a.m.

Senate Minority Whip Jon Kyl said today that he would not support extending the payroll tax cut before the end of this year.

In an appearance on “Fox News Sunday,” the Arizona Republican argued that continuing a cut in the employee share of the payroll tax would undermine the Social Security system.

The employee share of the tax was dropped from 6.2 percent to 4.2 percent this year in an attempt to stimulate the economy, and President Barack Obama has recently called for it to be extended.

But Kyl noted that revenue from the tax supports Social Security.