That is my point, your research is not very well done. You are pigeon-holing one dynamic with one statistic and linking it to one cause. A problem as complicated as murder rates cannot be linked to political party affiliation. That door swings both ways, if you presented data and the conclusion was the other way, my response would be the same.
My research consisted of this:
1. I logged in through our P.D. FBI portal (I am a cop - we send in UCRs) and looked at cities with populations over 100,000 people, and the murder rates for the year 2015. Originally I only chose the top 10 cities, but those were so obvious that I expanded it to 25, hoping to get a deeper sampling. I intentionally did not include the race or gender of either the suspects or victims, as I wanted ALL to be represented. I printed off those top 25 cities.
2. Then I used the election results for those same cities (already gave the link) and it shows county by county, how those areas voted.
3. I took the print out and wrote down how each of those cities voted (majority based).
The end result is a data table that is FACTUAL, based off FBI crime stats, and the election results. My research, contrary to your statement of "not very well done," was detailed and spot on.
It is what it is.