States are gradually displacing the Electoral College by declaring how their representatives may vote (winner take all or proportional - more are going to proportional)

Unfortunately, doing this gradually causes problems as well. Suppose you win a state with 12 seats by a fair but not huge margin, and I only just win a state with 10. On the winner takes all, you get power with a 2 seat advantage. If they both are proportional, you get say 7 of yours, and I get 5. As I only just won mine, we get 5 each, and again you win with a 2 seat advantage. But if yours is proportional and mine is 'winner takes all', I get 5 of yours and 10 of mine, and end up with an 11 vote lead to take into the college.