You need to loudly assert /pre-election/ that vote-buying is illegal, even if you don't reference him specifically or charge it first, because you need to have the space /post/-election that the charges are because it was plainly illegal, not that you're clear of the election now so can "clean up"

I won’t get that tripped up about that, though agree loud signaling that they intend to prosecute vote-buying and related vote-process buying conduct would be good. Unapologetic, righteous, and aggressive exercise of prosecution power to hold this magnate accountable is the important bit.