American Banking Association
The American Bankers Association is a Industry Trade Group that represent the banking sector. Founded in 1875, professional assocation was created to represent banks of every capacity. They claim on their offical ABA website that their the "voice for the nation's $13 trillion banking industry and its 2 million employees."
The ABA as lobby heavily for the banking industry, and are very influencial towards promotng and challenging many actions taken by the US government.