Why Do We Need a Jobs Bill?

Why do we need a "jobs bill?" We passed an almost 1,000,000,000,000 (trillion) dollar stimulus bill which we were told was supposed to fund job creation. Remember all those jobs "saved or created?" Over half of that 862 billion has not been spent, so why is the Senate passing a 140,000,000,000 (billion) dollar jobs bill? Why not just appropriate the remainder of the original "jobs bill" (stimulus) instead of borrowing another 140,000,000,000 dollars to fund another "jobs bill"? Did the original "jobs bill" fail?

Or was the stimulus bill not a "jobs bill" at all, but rather exactly what conservatives have said it is: a slush fund designed to help Democrat re-election bids in November?