Not really. Champagne needs to have carbonation. Like your bottle of coke carbonation starts leaving the solution whenever it’s opened. This proceeds within a closed of bottle, too (hence why the last glass of coke out of a bottle that’s been sitting over a day is almost flat.

Both beverages do oxidize. The CO2 leeching from your champagne will protect it from most of the ill effects. However you can vacuumize your wine bottle, and due to it getting flat, this doesn’t work with the champagne.

So technically your campagne doesn’t oxidize, however it loses it’s sparkle. With a champagne stopper you can mitigate this effect, just like you can mitigate oxidation by vacuum in a regular bottle.

Without these special stoppers you can keep both wines for three days, the white wine under the cork, the champagne resisting attempts to re cork, due to CO2 pressure.

They will both not be as good as unopened after the days. For different reasons.

I had a bottle of brandy made in “Crimea, Ukraine”, for when the Putin dies. Doesn’t help the fact that my wife poured out all the alcohol when we were arguing about its consumption, but at least I had a plan.

Heh. I may or may not already have those three.

I’m not excited for anyone to die, but I really want to know, on my deathbed, that I outlived those three.

I tell myself it has something to do with knowing I contributed positive change to the world for longer than their negative, but I realize it’s probably just my pettiness.

Cava or crémant will do nicely too

And Asti (just don’t buy Martini Asti). And Spumante, and a lot of other stuff