Jesse Jackson Jr. at Mayo Clinic

    FILE - In this May 16, 2011 file photo, U.S. Rep. Jesse Jackson Jr. attends ceremonies for Chicago Mayor-elect Rahm Emanuel in Chicago. On Wednesday, July 11, 2012, Jackson's staff said they soon could have more information to release about the Chicago Democrat's medical condition. Jackson's been on medical leave for a month, but his location and exact ailment haven't been disclosed.  Initially, staff said he was being treated for exhaustion. But last week they said his condition was worse than previously thought and required inpatient treatment. They also disclosed Jackson has been battling emotional problems.  (AP Photo/Charles Rex Arbogast, File)

    Charles Rex Arbogast / AP Photo

    Rep. Jesse Jackson Jr. (D-IL) has been off the grid for over a month, after taking congressional medical leave in early June. It emerged Saturday that Jackson is currently being treated for depression as well as gastrointestinal issues at the Mayo Clinic in Minnesota. "Further information will be released as Congressman Jackson's evaluation proceeds," the hospital announced. Jackson first went on leave June 10, and his office spent several weeks issuing and then updating various explanations, from "exhaustion" to an unnamed "mood disorder." The congressman is currently under ethics investigation in the House over connections to former Illinois Governor Rod Blagojevich.

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