[trollbridge]

A couple states (notably California) simply have a primary election to determine who the 2 candidates will be in the general election. They're often both from the same party in "one party" districts where people overwhelmingly prefer one of the parties.

California's voting districts are gerrymandered along party lines, so the districts are about 75% safe seats for one party, and 25% safe seats for another party, despite the last Presidential election only being 58% for the one party and 42% for the other.

Despite this, California has some of the most egregious pandering to extremes within the parties (due to the safe seats) and has a reputation for having "extreme" candidates.