Via Matt Grossmann, a new paper by Patrick Fisher:
Contemporary American politics is marked by an unusually substantial generation gap. This has important implications for the future of American politics as an overwhelmingly white and conservative generation, the Silent Generation, is being replaced in the electorate by much more diverse and liberal generations: the Millennial Generation and Generation Z. To project potential partisan changes in the American electorate with generational replacement, simulations were calculated estimating what the electorate may look like, using the 2016 presidential election as a baseline. Hypothesizing the same generational dynamics of vote choice and turnout for 2020 that existed in 2016, with generational replacement alone the national plurality of 2.1 percent for the Democratic candidate increases to 4.8 percent if Generation Z votes the same as Millennials. For elections beyond 2020, the potential partisan swing toward the Democrats based on generational replacement become even much more considerable. By 2032, Millennials and Generation Z combined are projected to consist of almost one‐half of the entire electorate. Even if Generation Z is not distinct from the rest of the electorate politically, given how strongly Democratic the Millennials are, the simulated gain for the Democrats in 2032 is 5 percent; and, if Generation Z becomes as Democratic leaning as Millennials are, the simulated swing toward the Democrats is greater than 7 percent.
Paper here (paywalled).