Federal Election Committee (FEC) Statistics for the 2016 Presidential, U.S. Senate, and U.S. House elections. There are also comparative statistics for the Presidential general elections from 2004 to 2016.
Ballotpedia: Presidential election statistics by state, 2016.
Electoral-vote.com: Created by computer scientist Andrew S. Tanenbaum to predict the outcome of U.S. elections
Main site: Wikipedia
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