Speaker Nancy Pelosi has reportedly told fellow Democrats that she's prepared to lose seats in 2010 if that's what it takes to pass ObamaCare, and little wonder. The health bill she unwrapped last Thursday, which President Obama hailed as a "critical milestone," may well be the worst piece of post-New Deal legislation ever introduced.

In a rational political world, this 1,990-page runaway train would have been derailed months ago. With spending and debt already at record peacetime levels, the bill creates a new and probably...