Politico:

Anthony Weiner will resign from his seat in Congress, heeding calls from President Barack Obama, House Speaker John Boehner (R-Ohio), House Minority Leader Nancy Pelosi (D-Calif.) and dozens of other congressional Democrats, sources confirm to POLITICO. The resignation ends nearly three weeks of tumultuous political controversy since the New York congressman sent a lewd picture of himself over Twitter which he claimed at first was a result of a hack, and later admitted he had sent himself. Weiner is expected to make his resignation official at an event at 2 pm, though it wasn’t immediately clear where.

And David Vitter?