I collect mainly political autographs as they will always be valuable even in the future.

For the mayors I would def write to Mayor Bloomberg of NYC,

All of the major mayors in big cities will have there own website and contact forum. I have recieved many autographs from current and former mayors by emailing and writing letters to there offices. Just so you know many of them send out AP or PP. Especially the more well known mayors. Good luck with your political collection, it is pretty much all I collect know.

Hey everbody!
Recently I got into e-mailing the governors and senators of the US states. I was wondering if writing to the mayors of major cities was a good idea, or if it would work? Do they have their own websites or contact forms online? These were the cities I was thinking of:

New York City
Pittsburgh
Los Angeles
Boston
Philadelphia
Toronto
Baltimore
Tampa
Detroit
Chicago
Minneapolis
Cleveland
Cincinatti
Kansas City
Anaheim
Oakland
Houston
Seattle
Atlanta
Miami
Buffalo
Rochester
Syracuse
Washington DC
St. Louis
Milwaukee
San Francisco
San Diego
Phoenix
Denver
Edmonton
Honolulu
Tulsa
London

Are these good choices? Are there any other cities you would recommend? Thanks guys!