Rep. David Wu (D-OR) formally resigned from Congress last night with a phone call to Oregon Gov. John Kitzhaber (D), "capping a day of mounting speculation over when he would finally leave," the Oregonian reports.
"The action kicks off what is expected to be a wide-open race for his replacement. It also brings an inglorious end to the nearly 13 tumultuous years that Wu represented the 1st Congressional District."
Said Wu: "Serving as a U.S. Congressman has been the greatest honor of my life."