How about this... an all of the above strategy. Ground game, candidates, education. We need to internally weed the field when we have people with mostly similar views. That would eliminate a lot of the blood. The RNC needs to be vetting strong viable candidates long long before the election. Once the few are chosen the players in the actual primary should agree to stick to issues and keep a level of civility or be left out. We should be holding events and working at garnering support NOW, not the year of the election as well. Spending political capital in minority neighborhoods well apart from elections will help more than pandering to a single issue.