'Gray wave' of senior voters could be pivotal in November

(NewsNation)—Seniors have long been one of the most consistent voting blocs in the U.S., with Americans over 65 turning out to the polls in greater numbers than any other demographic. This demographic will be critical as concerns over both candidates' ages have surfaced.

According to the U.S. Census Bureau, there are now nearly 56 million Americans over the age of 65, a 60% increase from the year 2000.

Thanks to rising life expectancy, the current life expectancy is over 79 years old, an increase of 2 1/2 years since 2000.