Erich W. Zimmermann is a Senior Policy Analyst at Taxpayers for Common Sense. He leads TCS’s efforts on transportation and earmark issues, and carries out general research and investigations. Prior to joining TCS in 2003, Mr. Zimmermann worked on local transportation issues in Missoula, Montana as program director with the Missoula Institute for Sustainable Transportation. He received his M.S. in Environmental Studies from the University of Montana, and his B.A. in Political Communication from the George Washington University, in Washington, DC.