I've had the same idea, but it's difficult to ensure proportional representation this way if there are more than two parties. Party A wins a county of 10,000 pe

I've had the same idea, but it's difficult to ensure proportional representation this way if there are more than two parties. Party A wins a county of 10,000 people with 40% of the vote, parties B and C get 35% and 25% respectively. So party A's representative wins, fine; but what should their weighting be? How do we account for the relative popularity of B and C? So it's not as simple as it seems, and that's beside the awkwardness of totalling up fractional votes for each parliamentary debate. You'd need fully electronic voting for that, which may well be a good idea anyway, but it's a big step. There are already existing methods that get very close to fully proportional representation while keeping local representation, and don't require fractional votes, so we should just use those. For example https://en.wikipedia.org/wiki/Mixed-member_proportional_representation https://en.wikipedia.org/wiki/Mixed-member_proportional_repr...