Politics are the actions or activities concerned with achieving and using power in a country or society. The verb that follows politics may be either singular or plural.

Your politics are your beliefs about how a country ought to be governed.

Politics is the study of the ways in which countries are governed.

Politics can be used to talk about the ways that power is shared in an organization and the ways it is affected by personal relationships between people who work together. The verb that follows politics may be either singular or plural.