Match the given explanation with the correct idiom.
1. An opportunist without any scruples or ethics, or a politician who wants to represent a place they have no connection with.
2. If a nation conducts its diplomatic relations by threatening military action to get what it wants, it is using...
3. This phrase is used when one is so cynical that one doesn't think one can change their Representatives. The phrase must have started with frustration towards a local body of government.