Alex Von Hagen-Jamar

Pronouns: He/Him/His

Alex Von Hagen-Jamar is the head of quantitative methodology for GSG’s research practice, where he guides the cutting-edge data science and analytics behind our polls and manages GSG’s data team. Alex oversees the methodological approach of GSG’s survey research for both the Political and Insights teams, ensuring it meets the highest standards of rigor and innovation. In that capacity, he consults internally on projects for many of GSG’s biggest clients.

Alex arrived at GSG at the end of the 2020 election cycle, as pollsters across the country were grappling with new challenges. He led GSG’s 2020 accuracy post-mortem and updated processes and methods, resulting in improved horserace accuracy in 2022 and 2024. In addition to GSG’s accuracy work, Alex leads a wide range of other methodological research projects on topics like sampling, likely voter modeling, weighting, measurement, and message testing. As a member of the American Association of Public Opinion Research (AAPOR), Alex often presents on these and other topics at the organization’s annual conference.

Previously, Alex served as the National Director of Data and Analytics for Amy Klobuchar’s 2020 Presidential campaign. Before that, he taught political science and research methods at Carleton College, Lund University in Sweden, and NYU Shanghai. Alex’s academic research on how laws, elites, and public opinion combine to determine policy outcomes can be found in journals like the Journal of Politics and Foreign Policy Analysis. He received his PhD in Political Science from the University of Michigan.

In his free time, Alex can be found watching a lot of soccer (especially the Washington Spirit and DC United), playing Dungeons and Dragons with his friends and family, and catching live, local music in the DMV area.