[throwaway136]

Or it could be simply that he wants to understand the people of the country better. After Trump's election he may be surprised by the outcome, and instead of cursing intelligence of people who voted him, he just wants to understand the perspective.

I know Zuckerberg is not a well liked on HN, but still if we consider his previous resolutions of reading book, running, building AI. Most are simple without ulterior motives of ruling the world.