Germany has a very clever system of electing representatives. https://en.wikipedia.org/wiki/Electoral_system_of_Germany#Voting_system https://en.wikipedia.org/

Germany has a very clever system of electing representatives. https://en.wikipedia.org/wiki/Electoral_system_of_Germany#Voting_system https://en.wikipedia.org/wiki/Electoral_system_of_Germany#Vo... 1. You vote both for an individual in your district and for a party. 2. Individuals win via a plurality of their district, like in the US 3. The rest of the Bundestag is filled up from party lists so that as much as possible the final proportion of parties matches proportion of party votes. Applying it to your example and doubling the representative count, there would be 10 directly elected Democratic representatives. The rest would be distributed proportionately among Republican, Libertarian, and Green. In practice you don't actually get the directly elected seats all coming from one party, so in reality you end up with a roughly 35%/30%/20%/15% breakdown in the end. That way you can have some direct representation of your region, which I'd assert has some utility, without sacrificing proportional "accuracy". (I'm skipping a couple subtleties here, but that's the gist as I understand it.)