 Eisenberger spent three terms as one of two aldermen in Ward 5 from 1991 to 2000.He ran unsuccessfully for mayor in 2000, placing third behind Robert E. Wade and Bob Morrow.He registered, but withdrew from the 2003 mayoral election, due to a ruled conflict of interest by the federal ethics counsellor stemming from the fact that Eisenberger was serving as chair of the Hamilton Port Authority.