Libertarian Party of New York
|April 30, 2016—May 4, 2019|
Michael J. "Mike" Dowden is the current Treasurer of the Nassau County Libertarian Party, having been elected in 2017. He was Treasurer of the Libertarian Party of New York from 2016 to 2019 and Chair of the IT Committee from 2017 to 2019.
- Treasurer (April 30, 2016—May 4, 2019)
- Chair, IT Committee (June 4, 2017—September 8, 2019)
- Treasurer (June 8, 2017—present)
- Secretary (2016—June 8, 2017)