The stats geniuses at FiveThirtyEight have published an interactive map showing which presidential primary candidates have the most Facebook likes in each county in the U.S.
If Facebook likes were votes, Bernie Sanders would be on pace to beat Hillary Clinton nationwide by a nearly 3-to-1 margin and Donald Trump to garner more support than Ted Cruz and Marco Rubio combined. Anything seems possible this year, but, still, be careful how you interpret these numbers: Facebook likes are not votes.
According to the Pew Research Center, 58 percent of American adults use Facebook. But this share is not a representative sample of the country — Facebook users are disproportionately young (although not as young as users of other social media networks), low-income and female. And the sample may be even more skewed because only some people on Facebook have liked a presidential candidate's page and because those pages haven't existed for the same amount of time.