The Case Against Early Voting

The integrity of that space is broken when some citizens cast their ballots as early as 46 days before the election, as some states allow. A lot can happen in those 46 days. Early voters are, in essence, asked a different set of questions from later ones; they are voting with a different set of facts. They may cast their ballots without the knowledge that comes from later candidate debates (think of the all-important Kennedy-Nixon debates, which ran from late September 1960 until late October); without further media scrutiny of candidates; or without seeing how they respond to unexpected national or international news events — the proverbial “October surprise.” The 2008 election, for example, could have ended differently had many voters cast their ballots before the massive economic crisis that followed the collapse of Lehman Brothers that September.
The Case Against Early Voting - Eugene Kontorovich and John McGinnis - POLITICO Magazine