Why may states oppose the proportional plan for electoral votes?

The proportional plan for allocating electoral votes divides the votes based on the percentage of the popular vote each candidate receives within a state, rather than using a winner-takes-all approach. This shift can lead to a reduction of the influence states have in presidential elections, particularly those that currently benefit from the dominant role of winner-takes-all systems.

States that traditionally support one party or candidate may find that the proportional distribution dilutes their electoral power and leads to outcomes that are less predictable, potentially favoring candidates who have broader, but less concentrated support across multiple states. Consequently, states may fear that they will have less ability to sway the outcome of an election, making them less inclined to endorse such a change.

Ultimately, the concern is largely about the retention of political influence and the implications that electoral changes have on both the state's representation and its ability to affect national outcomes.