CIRCLE is out with the 2020 YESI (Youth Electoral Significance Index). It identifies the House and Senate races and states where the youth vote will make the most difference to the 2020 election.
For instance, the graphic shows the top-10 House races in the YESI.
The YESI page also explains why these states and districts will matter, which can be useful guidance for analysts, observers, and political actors.
Every young person should vote. Parties, candidates, interest groups, and election officials should encourage youth voting everywhere. Reporters should cover the youth vote as a news story everywhere.
That said, political realism dictates that all these players will concentrate their attention and resources where it matters most to electoral outcomes. Informing them can increase their net investment in youth voting, with benefits for democracy. Hence the YESI, which proved influential in 2018.