Published: Jun 13, 2011 1:25 PM EDT
Updated: Jun 13, 2011 1:25 PM EDT

WASHINGTON (AP) - Congress returns to work today, but at least one lawmaker won't be there.
Rep. Anthony Weiner starts this week on a temporary leave of absence, in treatment for an undisclosed disorder at an undisclosed location. He spent most of last week embroiled in a sexting scandal.
Weiner has acknowledged exchanging messages and photos, ranging from sexually suggestive to explicit, with several women online. The latest to surface appeared on the gossip website TMZ.
Meanwhile, the No. 2 House Democrat spoke of Weiner's "bizarre and unacceptable behavior" in sending the inappropriate pictures of himself. Rep. Steny Hoyer of Maryland said it would be "extraordinarily difficult" for Weiner to be effective in Congress.
The Republican Party chairman criticized Democratic leaders for not taking a more forceful stand earlier on the affair.