Hmmm....a Corleone becoming a politician -- what his father (and grandfather) always wanted...only not the way they wanted. Anthony goes after Vincent, tries to bring him down, inciting a battle between two men akin to something like, I dunno, Michael Mann's Heat.

FFC said they did envision a Part IV where Vincent becomes something akin to Pablo Escobar, so it could be interesting to see Anthony putting the pressure on VIncent and the Corleone family to mirror Escobar's eventual downfall.