This study examined the predictors of political trust in late adolescence. Three waves of longitudinal data (ages 11, 15, and 17) from 1116 Czech adolescents (346 participated at least in the first and last wave) were analyzed using structural equation modeling. Results showed that high verbal cognitive ability in early adolescence predicted greater political trust in late adolescence. This effect was explained by adolescents' greater cognitive political engagements, but not by their more positive relationships with authorities (e.g., school or parents) during adolescence. Next, early adolescents who perceived more parental warmth demonstrated greater political trust when they reached late adolescence. These results suggest that some young people might enter adulthood more skeptical regarding politics based on their abilities and early nonpolitical experiences.