Conversation so far:
what is the significance of the sacrificial lamb
A sacrificial lamb is a metaphorical reference to a person or animal sacrificed for the common good.
where is the term sacrificial labm derived from
The term sacrificial lamb is derived from the traditions of Abrahamic religion where a lamb is a highly valued possession.
what does the term sacrificial lamb mean in the arts
In cinema and literature, the term sacrificial lamb refers to a supporting character whose purpose is to die, galvanizing the protagonist to action and demonstrating how evil the villain is.

Question: how about in politics
Self-contained rewrite: how about what does the term mean in politics