The federal budget deficit widened in November, driven by higher spending in such areas as Social Security, Medicare and defense. The Treasury Department said the November deficit climbed to $64.6 billion, up 13.6 percent from a year ago. For the first two months of the budget year that began on Oct. 1, the deficit totals $201.1 billion, a 12.6 percent jump from a year ago. Total receipts are up 2.9 percent to $416 billion over the past two months compared with a year ago, but spending is up 5.9 percent to $617.1 billion. The rise reflects in part more tax revenue as unemployment declines. The latest numbers underscore the impact of paying benefits to a growing number of retiring baby boomers. The report said Social Security spending expanded 4 percent, while Medicare spending increased 9 percent.