Trenton Mayor Tony Mack and his brother, Ralphiel, face counts including bribery, extortion and fraud.
Prosecutors allege they participated in a scheme to take cash in return for help with a downtown land deal. The deal was fictitious and part of a government sting operation.
The mayor's lawyer claims he's a victim of government investigators who used the fake land deal and a slick-talking middleman to ensnare him.
Jurors on Friday are considering the evidence in federal court in Trenton.
