kelly o'donnell. >> reporter: after almost 70 days of secrecy, nbc news obtained the first photos of congressman jesse jackson jr., who is hospitalized for treatment of the mental illness bipolar disorder. visited thursday by his friend and former congressman patrick kennedy. >> this has taken him down. i mean, nothing like a mental illness can threaten your life like what depression has done. >> reporter: kennedy, who had also been treated for depression at the same hospital, the mayo clinic, traveled to minnesota to offer jackson support. >> there's the political story, but i was there really to see someone who is in a lot of personal pain, who is suffering from a very serious illness. >> reporter: jackson has spent 18 years in congress and a lifetime in both the spotlight and the shadow of his famous father, the civil rights leader. the democrat from chicago's south side simply dropped out of sight in june. at first, his office blamed his absence on exhaustion, but under mounting public pressure finally said more, that jackson has a mood disorder. this week, the mayo clinic confirmed bipolar disord