Democrats seem impervious to embarrassment as they buy votes for ObamaCare, but their latest move makes even Nebraska's Ben Nelson look cheap: The 87% of Americans who don't belong to a union will now foot the bill for a $60 billion giveaway to those who do.

The Senate bill was financed in part by a 40% excise tax on high-cost insurance coverage. The White House backs this "Cadillac tax" as one of the few remaining cost-control tokens. But Big Labor abhors the tax because union benefits tend to be far more generous than average,...