Take Action

Get Common Cause Updates

Get breaking news and updates from Common Cause.

Our Campaigns

Get involved in pro-democracy campaigns.


Learn how you can do more to strengthen democracy.


Make a contribution to support Common Cause today.

Find Your State

Phone: (443) 906-0442 | Email: deffingham@commoncause.org

Damon Effingham joined Common Cause Maryland in January 2016, becoming Acting Director in December 2017. He is responsible for implementing the Maryland organization’s policy campaigns and building its capacity. Since joining the organization Damon has lead legislative campaigns on issues related to money in politics, voting rights, transparency and government ethics.

Prior to joining Common Cause Maryland, Damon worked with U.S. Representative John Sarbanes on the bi-partisan Government By the People Act campaign, and consulted companies seeking licensure under Maryland’s burgeoning medical marijuana program. Damon is a graduate of New York University and Emory Law School.



Next Staff Member

Kate Titus

Join the movement over 1 million strong for democracy

Join us: Americans deserve open, honest, accountable government.