U.S. Rep. Jesse Jackson Jr. (D-Ill.). File photo
U.S. Rep. Jesse Jackson Jr. (D-Ill.)
U.S. Rep. Jesse Jackson Jr. (D-Ill.). File photo
U.S. Rep. Jesse Jackson Jr. (2nd District)
Federal authorities believe Jesse Jackson Jr. was tipped off to the federal investigation that ultimately contributed to the demise of his once-promising career. Sources with knowledge of the probe told the Chicago Sun-Times that investigators believe Jackson had learned of the federal scrutiny of his …