Could be, but it's really not very creative. How about this:

FromWithin will see I mentioned him in this debate and slam his fist down on the table, unfortunately flattening a bug by accident. That bug, through the "butterfly effect", will set off an unlikely chain of global events that will lead to Trump becoming the undisputed king of the world. And then as king of the world Trump will systematically nuke cities where he owns no hotel properties, until unfortunately the radiation and nuclear winter resulting will be the death of the world.

It's more likely that it'll come about as a result of energy deficiency.

We currently can't sustain the whole population on nuclear and renewables. So when it's no longer possible (or economical) to extract fossil fuels, the energy industry is going to take a massive hit.

Rising energy costs will mean the poorest in society will no longer have electricity in their homes. This will lead to huge inequality, which culminates in resentment and riots.

The US and the rest of the developed world is likely to see prolonged power outages. The West's reliance on electricity means it'll be impossible to access money, use shops and access food.

The financially privileged in the developed world will suffer most; the majority of poor people in places like sub-Saharan Africa are likely to be able to continue their lives as normal.