About the authors Catrina Schläger has been head of the Analysis and Plan­ning unit at the Friedrich-Ebert-Stiftung since May 2021. Prior to that, she held various positions in the FES’s inter­national division, including head of the International Policy Analysis unit and head of the Shanghai office. Jan Niklas Engels is an advisor on empirical trends and social research in the FES Analysis and Planning unit. He has previously worked for the FES in various functions in Germany and abroad, including as office manager in Buda­pest, Hungary. Nicole Loew is an expert in empirical trends and social re­search in the FES Analysis and Planning unit. Prior to this, she worked as a research assistant at the Free University of Berlin on populism, elections and attitude research. The authors would like to express their sincere thanks to Finia Ehrentraut for compiling and quality-control of the data, and to Marko Miljevic for processing the preliminary election results to calculate the tight constituencies. Analysis of the Bundestag elections 2025 27