Former Rep. William Jefferson will appeal the case. His attorneys claim the sentence is unduly harsh compared to other political corruption convictions.
Joseph Cao, a House Republican from Louisiana, voted for healthcare bill Saturday night.
Justice Department prevailed in the infamous 'freezer cash' case, but it lost ground in law enforcement's ability to wiretap or investigate members of Congress.
The FBI is probing some 2,500 public corruption cases – a 50 percent jump since 2003.