I know it requires one hell of a butterfly net, but imagine if somehow you end up with the same people more or less moving around the same way, so you get a Sarah Palin who probably wouldn't be premier, but interesting now times, Putin and his cronies like to say Alaska was leased (which is ridiculous it was bad enough at the time it was purchased let alone leased and hell there was no reason to return the Panama canal at all, Panama itself would be part of Colombia still if America hadn't wanted to build it there or Colombia had just agreed to sell that strip, but even then the US didn't annex it, or even keep Panama as some kind of satellite state, and then made good on its lease agreement, and if that was the case with Alaska then, well, they probably wouldn't have given it back to the Soviets, but I could see the US setting it up with some recognized this is the true remnant of Russia government, and the point it would have been returned to "Russia".
Now Putin makes that calim with a Canadian Alaska well, here we have a Canada that after the cold war really chilled (pun entirely intended) on those defenses, we don't need that as much just a coastguard.
February 24, 2022 he decides to make good on that and invades Canada.