I've seen that data b4. First keep in mind red states do not necessarily have a larger % of red voters. It's not a % thing, states like Iowa for example draw congressional lines bipartisan,and the result is a liberal state. But in FL you ot lines that look like snakes and spurs and stuff. See most amerian are liberal minded and as a result conservatives have been stealing the elections. An example might be a city would be drawn so each village is represented by 1 rep. But turns out the city is 52% blue. So to compensate for this they draw the lines going out of the city down teh countis, over the hill and through the mountain so 4 or 5 or 20 cities might be in a reps area and 1 city might have 7 reps weaving into it. It's not what teh founding fathers meant and its unconsititional to draw the lines so t result will be red. But that's it all red states are really blue.
Another example: Obama won in Dallas Counties wich the major cities reside in: dallas, houston, austin, san antonio, corpus christi, and el paso. Even cities with big nasa and big mlitary bases voted Obama.