May 27: Then-congressman Anthony Weiner sends a waist-down photo to a 21-year-old female college student in Seattle. The photo is quickly deleted and Weiner tweets that his Facebook account had been hacked. In the days following the tweet, spokesman calls the photo "a distraction" perpetuated by a hacker and Weiner fends off questions about the photo.
June 1: Weiner tells MSNBC he cannot say "with certitude" whether the photo of a man's underpants was of him or not but continues to deny sending it. Photos of a shirtless Weiner surface, purportedly from a second woman.
June 6: Additional photos and messages purportedly sent to another woman surface. Weiner admits sending the waist-down photo and acknowledges "inappropriate" exchanges with six women before and after getting married. House Democratic Leader Nancy Pelosi calls for an ethics committee investigation.
June 9: Weiner insists he will not resign despite rapidly eroding support among his fellow Democrats.
June 10: Police in Delaware say they interviewed a 17-year-old girl about online contact she had with Wiener. A spokeswoman for the congressman says the contact was "neither explicit nor indecent."
June 11: Weiner announces he's entering professional treatment and requests a leave of absence from Congress.
June 12: Photos surface online that were purportedly taken in the House members' gym and show a shirtless Weiner with a towel around his waist.
June 16: Weiner resigns from Congress. He apologizes to his neighbors, constituents and wife for his "personal mistakes" and "the embarrassment" he caused.
May 22: Weiner launches his re-entry into the world of politics with a run for New York City mayor, asking voters for a second chance. He says he can't guarantee other explicit images won't emerge or that other people won't come forward.
July 23: Weiner admits sending additional explicit photos and texts to a woman he met online. Weiner does not say when the exchanges occurred but said his behavior created "challenges in our marriage that extended past my resignation."