Why do we need both? It's not like my house rep gives a shit about what I think even though I'm in his party. Having "your" rep seems incredibly overvalued.
Coming from a non-Anglosphere country with a long tradition of proportional voting, this idea of "my" representative has simply never made any sense to me. How can a member of a legislative body represent voters that didn't actually vote for him? What does it effectively mean to have "your" representative that you share with half a million other people and who doesn't share your values?