The structure of American elections is a big part of the problem.
To win a congressional seat, you need to:
- Win a primary election
- Win a general election
Only about 20% of eligible voters vote in primaries, and the ones who vote in Republican primaries tend to be deeply racist Trump supporters. This means that if you don't have their support, and you're a Republican, you can't get re-elected.
The top-two system in some Pacific coast states doesn't seem to really change this dynamic.
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