Re: @Eddy Ito - gerrymanding
Exactly that. For states with a voter initiative process, they should vote to replace the current "first post the post" system with "instant runoff". This voids the "throwing away your vote" argument that effectively blocks third parties from participating in the electoral process, and makes California's "only Democrats in November" laws unnecessary. Instead, voters can more accurately specify their preferences, e.g., "Sanders first, then Stein, then if all else fails" (holds nose) "Her".