U.S. Congressman Anthony Weiner (D-NY) in New York on June 6. (BRENDAN MCDERMID/REUTERS)

Winning one title — in sports, movies or politics — is tough. Winning back-to-back titles is infinitely more difficult. Everyone is gunning for you. You have to up your efforts to get back to the top.

Which brings us to Rep. Anthony Weiner.

One week removed from a disastrous series of media sit-downs in which he was unable to say “with certitude” whether a picture of a man’s underwear-clad groin posted on his Twitter feed was in fact of him, the New York Democrat managed to outdo himself. (And, no, we didn’t think that was possible.)

In a news conference Monday that was equal parts media circus and slow-the-car-down-to-watch-it train wreck, Weiner admitted that yes, the private parts on display in the photo were his, and yes, he had meant to send the picture to a college student in the Seattle area rather than posting it for all to see.

But he didn’t stop there. Weiner also acknowledged “inappropriate” online relationships with as many as six women and refused to answer questions about whether X-rated photos of him were floating around the Internet. (Hint: There are.)

Did we mention that conservative provocateur Andrew Breitbart, who originally posted the lewd pic of Weiner on his BigGovernment site, took to the lectern before the chastened congressman did, demanding an apology from those on the ideological left who had insisted he had hacked Weiner’s accounts?

Just when the saga couldn’t get any more dramatic, the news came late Wednesday that Weiner’s wife, longtime Hillary Rodham Clinton aide Huma Abedin, is pregnant with the couple’s first child — proving once again that truth is far, far stranger than fiction.

Anthony Weiner, for coming clean about dirty pictures, you had the worst week in Washington.Again. Congrats, or something.

Have a candidate for Worst Week in Washington? E-mail Chris Cillizza at chris.cillizza@wpost.com .

Read more from Outlook, friend us on Facebook, and follow us on Twitter.