Fiscal Policy: In this time of political partisanship, the two parties at last have found something they can agree on: raising the gas tax. It's a truly awful idea, and might get Republicans kicked out of office. It's shocking that Republicans, who won the last election by promising limited government and lower taxes, would in their first week back in power make noises about joining tax-and-spend liberal Democrats to raise the 18-cents-a-gallon gas tax. But that's exactly what they're doing. Suddenly, a number of Republicans — who should all know better — are saying they'll "consider" a gasoline tax hike,...