Frustrating lies from the White House

From the White House's home page for the "American Jobs Act," a.k.a. Stimulus 2.0:

The President’s plan will expand the payroll tax cut passed last year to cut workers payroll taxes in half in 2012 – providing a $1,500 tax cut to the typical American family, without negatively impacting the Social Security Trust Fund.

Uh, what? Workers pay less in to Social Security, but we don't do anything about the plan's outlays? How can anyone say with a straight face that wouldn't "negatively impact" the government's balance sheet? Perhaps they can make this claim because, really, there's nothing in this mysterious trust fund except for IOUs from other branches of the federal government.

But here I am, trying to make sense of the fantastical.