While the economy has finally started to grow, the disturbingly high unemployment rate is increasing pressure from the left to double down on this year's poorly designed fiscal stimulus bill. Since the stimulus bill was signed, the ranks of the unemployed have grown by over three million (over four million if involuntary part-time and discouraged workers are included). The unemployment rate, which the Obama administration projected the stimulus would contain at 8%, is now 10.2%.

There is little likelihood that another round...