It seems like there's no way that Biden can make any negotiation with Russia seem like a win to his base so if he wins it's almost an automatic 4 more years of war. But if Trump wins he could make most of the concessions that Russia wants and still sell it as "the best deal" to his fans. Is a trump win the best hope for shortening war?
Disclaimer: I would never vote for trump, I also won't vote for Biden, I'm also in a state that always goes one way so it doesn't matter at all.
I think it's too optimistic. If Trump was able to stop the war (for whatever dumb reason he might want to), he'd have ended the war in Afghanistan during his original term. Turns out the MIC has an unusual level of protection in its pet projects compared to other endeavors, and Trump does not have the will to fight that.