
I was reading this bit the other day, and it mentioned that Chavez had plans to create a union of the countries around him, and he was going to place himself in charge of the newly created state bank, and I started thinking...
Combining countries isn't new; plenty of stories feature a world government and do away with individual countries.
So I got to thinking, what would it look like if countries around the US became part of the US, with their states or regions becoming states. British Columbia would be a state, Ontario would be a state, Oaxaca would be a state, Sonora would be a state, and so on... each would have two elected senators and representatives based on populations, and everything else involved in full statehood.
Since the name United States of America would be even more applicable, it can stay. Pretend for a moment that the government, at least initially, is structured as the US is now. The senator from Magallanes has as much of a say in the federal government as the senator from Quebec, who has as much of a voice as the senator from Virginia. States will have varied power balances based on the number of representatives.
For the purposes of this exercise, "that situation could never happen for this reason or that" is not an acceptable answer. For the purposes of this exercise, it did happen, and the question it is: what does it look like?