After a brilliant round Sunday at a tournament in La Quinta, California, Mr. Mickelson hinted that new tax burdens might drive him out of the state, out of professional golf, and perhaps even out of the country. “There are going to be some drastic changes for me because I happen to be in that zone that has been targeted both federally and by the state, and it doesn’t work for me right now,” he said. “So I’m going to have to make some changes.”

The fan favorite who has won 40 events on the PGA tour described various state and federal levies and concluded that his tax rate now exceeds 60%. The sticker shock is understandable, now that President Obama has succeeded in raising the top income-tax rate this year to 39.6% from 35% and the top Medicare rate almost a full point to 3.8%. Meanwhile, Governor Jerry Brown persuaded Californians last fall to raise the top state income tax rate to 13.3%.