An aide to New York Gov. David Paterson surrendered Thursday to New York City authorities on assault charges stemming from a 2009 domestic violence case that touched off an evidence-tampering investigation in Albany.

David Johnson turned himself in to investigators with the Bronx district attorney's office on misdemeanor assault charges and was awaiting arraignment.

Paterson's involvement in the case — he made a phone call to the accuser, who soon dropped her allegations — caused him serious political damage, even though investigators found no evidence of witness tampering.

Buffeted by other ethics questions about World Series tickets, the Democratic governor soon dropped plans to run for a full term this fall, while saying he intended to finish the year in office.

The confrontation occurred on Halloween, with Johnson and his then-girlfriend, Sherr-una Booker. Angry over how she was dressed, she said he choked her, threw her against a dresser and ripped her Halloween costume. The case was initially handled in Family Court and dropped without prejudice because Booker did not appear for a hearing.