About America's ImpactAbout America's Impact

Executive Staff

  • Vicente Garcia has over seven years of experience working with domestic and international organizations, including organizations such as the Center for American Progress and the Atlantic Council of the United States. Vicente provides expertise in the areas of foreign affairs and national security with special concentration on the Middle East/North Africa region and Iran. However, he has worked on various domestic progressive campaigns ranging from issues on student debt and immigration to gender equality and faith-based initiatives. He is also a co-founder of the Georgetown Comunidad Scholarship Association.
  • Colin Steele works in the office of the Vice President for Global Engagement at Georgetown University. In this role, he supports the university's global outreach, partnership, and branding strategies, as well as strategic initiatives on campus.
  • Luis Vertiz is a program analyst with the U.S. Government focused on oversight in Afghanistan. Previously, Luis has worked with the Center for American Progress, Senator Bill Nelson (D-FL), the National Security Network and the Heart Rhythm Society. He earned his bachelors degree in Political Science with honors in International Security Studies at Stanford University.


  • Karen Mulhauser has been providing consulting services to nonprofits, foundations and progressive candidates since 1988. Prior to consulting, she was the Executive Director of NARAL in the '70s and of two disarmament groups in the '80s. She has a deep commitment to helping people understand the importance of advocacy and political engagement. She founded the initial America's Impact and helped with its regeneration after the 2008 elections. She was a Senior Adviser in the Obama for America campaign and worked in previous presidential and local elections. Currently she serves as the President on UNA Association of the National Capital Area as well as continuing consulting.
  • Andrew Albertson is a Management Associate at Creative Associates, where he brings a decade of experience focused on political development issues abroad. In his current work, he supports projects and research spanning the Middle East, Central America, and Africa. Prior to joining Creative he was Deputy Regional Representative for Southern Afghanistan (RC-S and RC-SW) for USAID's Office of Transition Initiatives. From 2007 - 2010, Albertson served as the Executive Director of the Project on Middle East Democracy (POMED). He has previous experience working on Capitol Hill and in Guatemala, where he helped rural communities participate in the country's decentralization reforms and local governance. Originally from Cincinnati, Albertson received a B.A. from Taylor University and an M.S. in Foreign Service from Georgetown University, where he was the Huffington Fellow at the Institute for the Study of Diplomacy. He's an avid Bengals fan.
  • Brad Bosserman is a Senior Associate at ASGK Public Strategies where he crafts public affairs campaigns and advises clients on policy and communications strategy. Previously, Brad served as Director of Middle East and North Africa at NDN. He has worked on defense, security, and grand strategy at the Center for Strategic and International Studies (CSIS) and served as a Research Fellow at the Roosevelt Institute. He earned his bachelors degree in Economics and Political Science from Aquinas College and conducted his graduate work in Government and National Security Policy at the Johns Hopkins University.
  • Jason Boxt is a Managing Director at The Glover Park Group, helping run the firm's Public Opinion Research practice. Previously, he was the Director of Advocacy at the Center for US Global Engagement (USGLC), and prior to that the National Deputy Political Director at American Israel Public Affairs Committee (AIPAC). For seven years he was a Democratic pollster with the Global Strategy Group. He is married to Cantor Rosalie Boxt and has two young daughters.
  • Asha Castleberry is a national security expert and U.S. Army Veteran. She worked for the State Department and is a graduate from Columbia University School of Economic and Public Affairs.
  • Beth Goldberg is a Senior Associate at Freedom House working on human rights and gender equality programs in the Middle East and North Africa. Beth previously spent time working with Namati and Amnesty International, providing research and monitoring & evaluation for programs in conflict and post-conflict settings. She focuses on justice sector reform, political participation, and ICTs for human rights monitoring. She holds a bachelors degree in International Politics and Security Studies from Georgetown's School of Foreign Service.
  • Nichole Graber is a foreign policy professional currently working on international politics in the form of soft power and development, helping developing governments in the areas of democracy and conflict mitigation. With more than ten years’ experience in international relations, Ms. Graber has lived and worked in various countries including Pakistan, Zimbabwe, Uganda, Haiti, Dominican Republic, Costa Rica, Fiji, Samoa, Spain, France, England, Italy, and Australia. She was also a founding member of Foreign Policy Professionals for Obama during the 2008 elections. Ms. Graber holds a BA in International Business, a graduate diploma from Johns Hopkins School of Advanced International Studies, and a MA in International Development via a Rotary Ambassadorial Scholarship.
  • Josh Nanberg is a communications consultant with more than 15 years’ experience in campaign management, messaging and media relations. Prior to starting his firm, Josh served as AIPAC's Regional Political Director for the Mid-Atlantic Region, organizing grassroots activists in 34 congressional districts. Josh holds undergraduate degrees in journalism and public policy from Syracuse University and a Masters in Government Administration from the University of Pennsylvania.
  • Dan Perez is a national security professional based in San Diego, California where he supports government clients with strategic planning and communications solutions. He has a Masters in Public Administration from Columbia University and a BA from Tufts University. He is also author of the book "Wonk University," the first admissions guide for international relations and public policy graduate programs.
  • Sarah Petrin Williamson is the Managing Director of Protect the People (PTP), which works with nonprofits, the private sector, and military to protect people affected by conflict and disaster. With over 20 years of experience leading teams in countries in crisis, Sarah is an expert in the protection of civilians and humanitarian assistance. She has also served as an election and transition advisor for the International Committee of the Red Cross (ICRC), UN Foundation, U.S. Global Leadership Coalition (USGLC), and was an active member of Foreign Policy Professionals for Obama in the 2008 election. Early in her career, she worked for U.S. Senator Olympia Snowe.