student union politics

a week is a long time in politics

In politics, much change can occur in a short space of time.

fruit of the union

A child, especially from a marriage or similar union.

palace politics

The relationships and interactions of top-level officials, advisors and other powerbrokers within a government, especially as involving internal rivalry and intrigue.

play politics

to act or say something according to political ambition, self-interest, and gamesmanship instead of moral conviction and altruism; to politick