Analysis of information sources in references of the Wikipedia article "List of United States presidential elections in which the winner lost the popular vote" in English language version.
In an eleventh-hour compromise between party leaders - considered the "Great Betrayal" by many blacks and southern Republicans ...
There are 33 states (plus the District of Columbia) that require electors to vote for a pledged candidate. Most of those states (16 plus DC) nonetheless do not provide for any penalty or any mechanism to prevent the deviant vote from counting as cast.