Zushy,
It a good question
What I think the ממרא is saying is “you think these people have power, Hashem is controlling the strings so instead of relying on them rely on Hashem
However Reb eliezer is answering your question correctly that there’s no “if trump was president…” because it’s the same as “if pigs could fly” they can’t and they never would be, just like trump wouldn’t be president now either