If you need more evidence that Republicans are no longer the party of fiscal prudence and that the Democrats are no longer out-of-control spendthrifts, take a look at two recent tax plans from the governors of New Jersey and Maryland. In an overture that primarily benefits the richest residents of New Jersey, Republican Governor Chris Christie has proposed cutting his state’s income taxes by 10 percent across the board, even though his state desperately needs revenue. At the other end of the spectrum, Maryland’s Democratic governor, Martin O’Malley, has proposed fading out deductions and exemptions for the richest taxpayers in his state, effectively raising their tax rates.