Piscopo performed the updated song — lyrics included "my New York and Philly blues are melting away" — at a recent charity event for the Boys and Girls Club in New Jersey, where his flirtation with running for governor to succeed incumbent Republican Chris Christie when his term ends in 2018 is out in the open. Piscopo, 65, gained fame as a member of the "SNL" cast, impersonating fellow Jersey native Sinatra as well as late-night host Dave Letterman. If Piscopo ran, it could ratchet up the national attention on next year's contest and could also be a significant boost to Republicans who are in rough shape, thanks to Christie's record-low approval ratings. A high level of name identification among voters goes a long way but might not be enough, said Ben Dworkin, the director of the Rebovich Institute of New Jersey Politics. On the Democratic side, Phil Murphy, a wealthy, one-time Goldman Sachs executive and Obama administration diplomat, is in strong position.