Political Psychology
47(4)
Doi:
https://doi.org/10.1111/pops.70178
Abstract With political polarization increasing, it is important to understand the development of political preferences. Previously, adolescent mental health problems have been linked to lower adulthood voting rates, while relationships between life trajectories of mental health and political attitudes and orientations remain largely underexplored. Using longitudinal data from the population‐based cohort Young in Norway ( N = 2215) spanning three decades, we examine associations between adolescent internalizing (depression, anxiety symptoms) and externalizing problems and 12 midlife political preferences. Latent class growth analysis identified three trajectories for internalizing and two for externalizing problems. Elevated levels of either problem type demonstrated significant associations with lower political and social trust in midlife. Elevated initial internalizing problems, regardless of subsequent development, were related to more left‐wing profiles. Conversely, persistently elevated externalizing problems showed associations with stronger right‐wing profiles. These findings demonstrate that mental health trajectories from adolescence into adulthood are systematically related to distinct political preferences in midlife.