I'm saying that "extreme" and "extremist" are not things with an objective reality, but rather things defined with reference to an existing group. What is extreme for one group may not be extreme for another group.

An election is basically a poll of whose views the population supports. So any person elected by that population must be a person with views that said population does not find extreme.

I think this is a problem with modern liberalism in that "extreme" has become synonymous with "people who disagree with me" or "people who don't share my right kind of opinions"