Facing mounting pressure to resign and the likelihood of a congressional ethics probe in the wake of his admission that he had inappropriate online exchanges with multiple women–and then lied about it–U.S. Representative Anthony Weiner is turning to a longtime legal adviser for counsel.

A source with direct knowledge of the matter who declined to be identified confirmed to The Am Law Daily Tuesday that New York–based Baker & Hostetler partner John Siegal–who represented Weiner as the congressman considered runs for New York City mayor in 2005 and 2009–will be representing Weiner amid the scandal’s fallout.

Siegal declined to comment when contacted by The Daily. The voice mailbox at Weiner’s congressional office was full and not accepting messages Tuesday afternoon.