That's a pretty extreme scenario. Obama could've stopped the war, & paid to
ship the troops home. Had you all made me dictator, that's what I would've done.
That was just one example. My point was that one administration can create commitments for the administrations that follow: collective agreements, supplier contracts, etc. And there are other things where the decisions that the previous administration made can't just be un-done with a snap of the fingers, so they end up having long-term cost implications.
My point was just that there's nothing wrong with describing a deficit as something that is "inherited". The decisions about spending and revenue that decide what the deficit will be often are inherited.