Hillary won the popular vote thanks to California, New York and other liberal big cities. If you want to look for electoral corruption, look there. Democrats fight like hell to prevent any accountability from their voting base.
Mail-in voting, same day registration, no ID requirement, IDs for illegals, etc, etc. Anyone remember how they discounted the military votes from overseas during Bush v Gore? All intended to cheapen our votes down to banana republic status. 
Now, when they lose, they are suddenly concerned about the sanctity of our elections.