Someone from a shul sent a question to Rav Bentzion Mutsafi asking that some in the shul, among the elders, the founders, want to say a special prayer for the welfare of PM Benjamin Netanyahu who is in a difficult situation politically and with the criminal investigations. The problem is that the younger members refuse to cooperate and allow the bracha to be made, so what should be done? Can a tefilla for Netanyahu's welfare be added or not?

Rav Mutsafi paskened that one can daven for the welfare of someone found in a difficult situation, someone being hounded, especially when all the Haredi institutions and rabbonim are connected to him. Those hounding Netanyahu are hounding the Torah and mitzvos, he added.
source: Kikar

The question is more really why we do not say such tefillos in the regular davening, for the welfare of the ministers and the State, let alone the IDF soldiers, on a regular basis, considering the mandate to do so in Chazal.

If you believe in Netanyahu's innocence, and that he is ultimately good because of all he has done for the Haredi community, I don't see why it is even a question.