A spokesman for congressman David Wu says the embattled Oregon Democrat will not seek re-election next year. Spokesman Erik Dorey said Monday that Wu has not made a final determination about finishing his current term, but Dorey emphasized that Wu is focused on serving his constituents to the best of his ability.

The 56-year-old Democrat is under fire after a report in his hometown paper stated that an 18-year-old California woman left a voicemail in his Portland office earlier this year that accused Wu of an unwanted sexual encounter three weeks after the November general election.

Wu kept a low profile Monday as lawmakers returned to Capitol Hill. House Democratic leader Nancy Pelosi has asked the House Ethics Committee for an investigation.