Un Bias United States Political Research based on Education VS political leanings

I am looking for only factual information. I need a chart created showing USA education collage degrees and very important people that also have trade education and their political leanings. We have two main parties in America. Republican & Democrat . There is a theory that educated people tend to lean democrat. I am skeptical that this is true when you look at the true meaning of education in America. It also means licensed trade education. Such as the below. [login to view URL] This article was created with a chart. After reading it and googling a few others, I realized that the only thing they are measuring is collage degrees. They are not looking at people that spend 2-6 years being educated in other areas. [login to view URL] I would like to see two different reports. One with the political leanings of collage educated VS trad educated people and how many more are there of each. Then lets take those numbers and compare them to which political part actually has more educated people combined. I have a feeling after you combine all forms of education the political line is somewhere in the middle, if not maybe towards the republicans. I am wanting only factual information. I am not sure if it is possible to gather this information but I would like to give it a shot.