Early voting in the U.S. general election has begun in more than 30 states so far, with at least 2.1 million voters having already cast their ballots.
By Election Day, November 8, it is estimated that 45 million people will have voted.
The third presidential debate is taking place in Las Vegas. Nevada began sending out absentee ballots on Wednesday.
Millions of people are expected to tune in to watch the third and final U.S. presidential debate Wednesday, being held in Las Vegas and beginning at 9 p.m. EDT (0100 UTC).
Television ratings for the second debate, held October 9, was about 66.5 million people -- sharply down from the 84 million who watched the first debate on September 26.
