Deadline to register to vote, or update an existing registration is Monday, October 17, 2016.
Deadline to request an absentee ballot to be mailed to you is 5:00 p.m. Tuesday, November 1, 2016.
This video describes the process of electing a U.S. President, using the 2012 election as an example.
These are the states where a competitive 2016 election is most like to be won or lost, based on a 270toWin.org review of various forecasts.