18- to 29-year-old voters have become significantly more liberal in the past year, according to a new Harvard poll Their preference for Democratic control of the White House has nearly doubled, with Sanders as the most popular candidate among that age group A majority of 18- to 29-year-olds seem to largely identify with Sanders’ anti-establishment message relating it to topics like student debt and income equality The poll shows there are more self-identified Democrats than Independents among young voters for the first time in five years and support of “progressive ideology” has increased in the past year