You can combine states using this app, which is really neat. I always knew that a state that combined ID, WY, ND, SD, and MT would be the same size (population-speaking) as Louisiana, with 9 electoral votes instead of the 16 they have now, and that having one state instead of 5 would have flipped the election of 2000. What I didnt know until now is that if you add Nebraska to the superstate, it would only end up with eleven electoral votes, the same as Arizona, Tennessee, Massachusetts, and Indiana.
Its effect on the Senate would be more severe: a state which had 12 senators would now have 2, both Republicans. Remove 2 Democrats and 8 Republicans from the Senate to account for this, and you'd get a Democrat-controlled upper chamber, 46 to 44.
This shows just how gerrymandered the actual electoral college is. A group of people with the same numbers as Indiana have sextuple the Senate representation and nearly double the electoral college representation, just because of how they're distributed. (though this doesn't flip the 2016 election, but as we saw, changing the EC to do that is trivial)
See it here:
https://drive.google.com/file/d/0BxotT4W5VIw9VFVzdHl6dE5KaHM/view?usp=sharing