For double jeopardy purposes, which is NOT considered a separate sovereign?

Question

Quizplus · Accepted Answer

For double jeopardy purposes, counties within the same state are not considered separate sovereigns. This principle, known as the "dual sovereignty doctrine," allows both state and federal governments to prosecute an individual for the same act without violating double jeopardy protections, because each government derives its power from a different source. However, counties within the same state derive their power from the same source, the state government, and thus are not considered separate sovereigns under this doctrine. Native American Tribes and the Federal Government, like state governments, are considered separate sovereigns because they derive their powers from different sources.

For Double Jeopardy Purposes, Which Is NOT Considered a Separate