Is there any way that the US could come to regret its purchase of Alaska from Russia and decide to sell it to Canada? Or is this ASB?
Very unlikely the profits of the seal hunting and fishing paid for the purchase within a few years AFAIK, Russia only sold because they needed hard cash now. So Alaska is a net benefit to the US, unless the US is in a situation where it needs hard cash right this minute selling Alaska makes no financial sense, and once Gold is discovered it becomes even more of a profit. You could have reasons other than financial but most of those reasons would make Canada not want to buy it either, and even financial wise the US is Canada's biggest trading partner if it is in such bad shape it needs cash now bad enough to lose a revenue stream like that, Canada is likely not in a position to afford buying itIs there any way that the US could come to regret its purchase of Alaska from Russia and decide to sell it to Canada? Or is this ASB?
Is that really the case? There might have been a constitutional requirement for Canada to get the UK to agree to any new acquisition of land(such requirements for things like adding senate seats exist to this day), but I don't think Canada after 1867 was considered legally part of the British Empire, in the same way that, say, India was pre-1948.You mean sell it to the British Empire. A sale to Canada into the first half of the 20th Century would amount to the same thing.
Very difficult. I can't think of a single instance where the US sold any territory it acquired. Such a treaty would have to be ratified by the Senate and the US wasn't hard up for cash.
True. But that is more settling a territorial dispute than an actual sale.Not a sale exactly. After the Louisiana Purchase the US and the UK negotiated a territorial swap with the UK getting LP land above the 49th parallel and the US getting BNA land west of the great lakes and south of the 49th parallel.