The predominantly Jewish, Crown Heights (and later East Flatbush)-based Madison Democratic Club served as the borough's primary "clubhouse" political venue for decades until the ascendancy of Meade Esposito's rival, Canarsie-based Thomas Jefferson Democratic Club in the 1960s and 1970s, playing an integral role in the rise of such figures as Speaker of the New York State Assembly Irwin Steingut; his son, fellow Speaker Stanley Steingut; New York City Mayor Abraham Beame; real estate developer Fred Trump; Democratic district leader Beadie Markowitz; and political fixer Abraham "Bunny" Lindenbaum.