Because America is balanced on a knife's edge, and the Senate and Electoral college basically runs the show.
If you introduce a new state that leans blue, that's two more blue senators and N more electoral college votes for a blue president. Republicans will staunchly oppose this. And vice versa.
If the senate were proportional to population, and if the electoral college were likewise apportioned via popular vote, then maybe you could be more flexible with state boundaries.
If you introduce a new state that leans blue, that's two more blue senators and N more electoral college votes for a blue president. Republicans will staunchly oppose this. And vice versa.
If the senate were proportional to population, and if the electoral college were likewise apportioned via popular vote, then maybe you could be more flexible with state boundaries.