Rep. Jesse Jackson Jr. leaves Mayo Clinic Associated Press Copyright 2012 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 12:27 p.m., Tuesday, November 13, 2012 Jackson returned to the hospital in October amid reports that he faced a new federal investigation into potential misuse of his campaign finances. The congressman remains under a House ethics committee investigation into his dealings with imprisoned former Illinois Gov.