The government change in the US will have a great impact in this War. That is undeniable and had been noted before in this thread and the mods allowed it to be discussed as long as it is kept behind known boundries by all.
Some of the last post maybe be too close to those boundries and even maybe some could be held as trespasers.
The fall of the Assad dinasty is a regime change.
The election of a new president in fair and democratic elections is not. Not in Spain, not in France, not in Germany, not in Taiwán, not in RoK, not in UK and not in the US.
One can like more or less the elected one, but is not a regime change. A return to the monarchy would be a regime change.