Once considered suitable for the White House, he’s now headed for the big house. Bob McDonnell received a 24-month prison sentence today for taking $177,000 in gifts and loans to push a dietary supplement. His wife faces sentencing on Feb. 20. “I allowed my life to get way out of balance,” said the disgraced politician, who was on Mitt Romney’s short list for vice presidential running mates. The sentence was far less than the 10 years sought by prosecutors, but one writer argues that it’s plenty fair.