At first there was clarity and discipline behind the shaping of the nation's largest tax cut in 20 years. Lobbyists were kept at bay. Businesses were told to wait their turn because other cuts would be coming. This one, the Republicans promised, would focus on individual taxpayers and make good sense. It would simplify the filing process while promoting long-term economic growth through tax savings of some $1,600 a year for the average household.
Then it all went bad. Late last month, during three days of chaotic, last-minute, closed-door negotiations between House and Senate leaders, Washington demonstrated its immense talent for...