To many Americans—especially baby boomers themselves—this news may come as a shock. For them, the term “millennial” has been associated with a youthful, often negative, vibe in terms of habits, ideology, and politics. Now, the oldest millennial is 39, and with their numbers exceeding those of baby boomers, the millennial generation is poised to take over influential roles in business and government. But the current political environment suggests this takeover could be contentious. Millennials and their juniors (Gen Z and younger) are more racially diverse than those that preceded them, with nearly half identifying as a racial or ethnic minority.
https://www.brookings.edu/blog/the-avenue/2020/07/30/now-more-than-half-of-americans-are-millennials-or-younger/