Over the last decade, operatives in both political parties have quietly agitated to change state laws in order to permit early voting. These efforts gained traction, and many states now allow citizens to cast their vote days or weeks early. In a few states, voting in the general election will begin this year a full six weeks before election day. A small coterie of critics have warned that early voting is a threat to our political system. This year may be the year that the threat materializes, revealing the serious unintended consequences of early voting laws.
For my own views on this question, see The New Conservative Assault on Early Voting.