This is the 3371st most frequent Russian word.
политических
"Political" (adjective).
Here, 'политических' is used as an adjective in the genitive plural form modifying 'систем', indicating association with politics.
Он занимается исследованием политических систем.
He is engaged in the study of political systems.
Here, 'политических' serves as an adjective in the genitive plural form modifying 'лидеров', emphasizing the noun's political aspect.
Политических лидеров нужно выбирать с умом.
Political leaders should be chosen wisely.
In this sentence, 'политических' modifies 'вопросов' as an adjective in the genitive plural, focusing on the political nature of the topics.