How will the US Constitution survive if the North American Union becomes reality?

It might not. It's hanging by a thread now.

It seems like the US Constitution is already under attack. I don't know but time will tell. I just hope we have intelligent and smart people working on this and not the people in the Bush administration who seem to lack intelligence and smarts or maybe they are only looking after a select group of Americans and forget about the rest.

A North American Union is not logical politically and more importantly economically, as such it will not happen.

but to answer your question EU nations seem to have their constitutions intact as well as their independence.

It shouldn't have any problem at all. Everyone said that about the UN and it made no difference. At lease someone is attempting to do something to get everyone together.

as far as it not happening it is allready happening, did any one notice all those trucks rolling across the border,the new world order is upon you my friends , ignore all the propaganda when the great gun seizure is upon us ''for our own protection'' it wiil be on then, quit listening to what they are saying and start paying attention to what they are doing ,

destroy your god , destroy your tv........martial law is a blank check ..........

it's almost dead anyway thanks to the republican party and the seal of approval from the american people.

a christian theocracy awaits us

Don't give up your guns.