The Chicago Sun-Times reports that a source close to Rep. Jesse Jackson Jr. says he will submit his resignation to Speaker John Boehner within the hour. The congressman is under federal investigation and has been on medical leave during treatment for bipolar disorder.

Jackson won reelection to his congressional seat earlier this month while being treated at the Mayo Clinic.

Twitter users have some pressing questions.

Twitchy will monitor this breaking news and update as more information becomes available.


Speaker Boehner’s office has received the letter of resignation.

Worth noting:

CBS News White House correspondent Mark Knoller shares some tidbits from Jackson’s letter of resignation:

Full letter here: