How's that work, exactly?
Gore won overwhelmingly in these areas and just barely squeaked out a victory in the popular vote. In the vast majority of presidential elections to date the popular vote and the EC went for the same candidate.
If the election was by popular vote, election strategies would change, but I don't see either party gaining an overwhelming advantage from the change.
At present the election is in practice decided by less than 10 states, where the vast majority of the campaigning takes place.
When the framers nationalized and consolidated the Union into one government, they obliterated federalism. The big states all demanded, and got, proportional representation.
It would make sense for like-minded, similar states to band together. Thought bubble----what if the Dakotas, Iowa, Nebraska, and Kansas united into one state? Then they might have some pull.