John M. Lake, then-mayor of Carneys Point, was defeated in November 2006 and indicted two weeks later on three corruption charges.
The Attorney General's Office is considering an appeal to extend the sentence, after requesting a seven-year term.
Prosecutors say Lake approached Anthony Rullo at least twice before the election and offered him jobs working for the township if he would drop out.
Rullo notified authorities and said he secretly recorded Lake making him offers.
