This can't be bad news for Bernie Sanders:
Has anyone looked at the demographics of the "Y" Gen?
This article is a year old, but the info is relevant for the next election.
This year, Millennials will overtake Baby Boomers
This year, the Millennial generation is projected to surpass the outsized Baby Boom generation as the nations largest living generation, according to the population projections released by the U.S. Census Bureau last month. Millennials (whom we define as between ages 18 to 34 in 2015) are projected to number 75.3 million, surpassing the projected 74.9 million Boomers (ages 51 to 69). The Gen X population (ages 35 to 50 in 2015) is projected to outnumber the Boomers by 2028.
The Millennial generation continues to grow as young immigrants expand their ranks. Boomers a generation defined by the boom in U.S. births following World War II are older and shrinking in size as the number of deaths exceed the number of older immigrants arriving in the country.
Generations are analytical constructs and it takes time for popular and expert consensus to develop as to the precise boundaries demarcating one generation from another. The Pew Research Center has established that the oldest Millennial was born in 1981. The Center continues to assess demographic, attitudinal and other evidence on habits and culture that will help to establish when the youngest Millennial was born or even when a new generation begins. To distill the implications of the census numbers for generational heft, this analysis assumes that the youngest Millennial was born in 1997.
http://www.pewresearch.org/fact-tank/2015/01/16/this-year-millennials-will-overtake-baby-boomers/