If you believe as I do that the tax hikes proposed by Barack Obama and Democrats are bad for the country, then we are in good company. No less an authority than Nobel Prize winner and Columbia University economist Robert Mundell, a principal contributor to the creation of the euro, says that ending the Bush tax cuts — as proposed by presumptive Democratic presidential nominee Barack Obama — would cause "a big recession, a nosedive." In an interview with The Wall Street Journal, Mundell said, "the most important thing that could be done with respect to tax rates is to...