Feingold receives mysterious package in Halloween prank

U.S. Sen. Russ Feingold received a suspicious package on his doorstep in Middleton Saturday, which police deemed a prank according to the Associated Press.

The Dane County Bomb Squad searched the package and found that instead of explosives it contained a board game and a letter to Feingold signed by ""Thomas Jefferson.""

Although the sender of the package has yet to be found, police traced the return address to a postal office in Illinois. The incident came on the heels of the recent interception of explosives headed for Jewish organizations in Chicago, the AP reported.