I notice an outlying link-clot on the “blue” hemisphere. That oddity combines with the relatively greater interconnections in the “red” hemisphere to indicate two things:
1. The “red” ‘sphere is comparatively more self-propagating, self-centered and self-referential than the “blue” one (not bad traits for a confident, partisan faction to possess).
2. The “blue” ‘sphere is being led from without, like an uncertain toy-poodle being led on a leash (good for the leash-holder, not so good usually for the dog).

Could that dead-ended, blue smudge lurking alone off to the far left be a sulking Soros-funded 527, beep, beep, beeping plaintively? – calling out to the HuffingtonpostDailykoscrowd, “Please, please link me. Link me. LINK ME!”