Poll: Dems lead in party ID among young voters by 15-18 points

At the same time, there are clear ebbs and flows in the degree of this Democratic advantage across the age spectrum. Democrats have the greatest advantage vis a vis Republicans among Americans at the very youngest voting age and also among members of the fabled baby boom, particularly those in their late 50s. Republicans do relatively better among those who are in Generation X, including in particular those in their late 30s and early 40s. Republicans also show greater support among older Americans in their late 60s.