[EM] PAR is awesome, part 2/2: Electoral college?

[Jameson Quinn]

In order to be a viable single-winner reform proposal for the US, a system
must be compatible with the electoral college through an interstate
compact. PAR meets this criterion. Consider the following system:

-All states that sign onto the compact give their electoral college votes
to the candidate with the most points.
-Each ballot in a plurality state gives one point to the candidate it is
cast for.
-Each ballot in an approval state gives one point to each candidate it
approves.
-In a PAR state, a candidate is disqualifiable if they get over 50%
"rejects" in PAR states, AND under 50% "NR points" nationwide (counting
non-"rejects" as NR points); OR if they get under 25% "prefers" in PAR
states, AND under 25% P points nationwide (counting "prefers" as P points).
Disqualifiable candidates are disqualified if there are any
non-disqualifiable candidates.
-Each ballot in a PAR state gives one point to each non-disqualified
candidate it prefers, and if it gives no such points (because all the
candidates it prefers were disqualified), one point to each
non-disqualified candidate it accepts.

The system above reduces to plurality, approval, or PAR if all states use
the same system. But it is a functional hybrid if there is a mix of states.
Moreover, if there is a mix of states, each state is incentivized to move
up the ladder that runs from plurality to approval to PAR, in order to give
their voters more expressivity and voting power.

Would such a compact break down if some state used yet a different system?
Not as long as that system could be defined in terms of giving points to
candidates, without using any information from states not using the same
system except how many points they gave to each candidate, and without
giving more than one point to any candidate per ballot on which they come
above bottom.

What if some state tried to throw a monkey wrench into the compact above by
deliberately using a system that does not have an interpretation that meets
the criterion in the previous paragraph? Sorry, that's impossible; just
interpret any such system as approval, with all above-bottom ranks or
ratings counting as approval.
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