age distribution of partisan politics

я бы предпочёл другой вид, точнее: 2 рисунка = вес когорт + идиодолю в них
но и так видно, что и ранее известно, левизна — удел мОлодеж Ы:

It’s not unexpected that Pew Research’s new survey would find a wide ideological gulf between younger and older Americans. We’re by now used to the idea that younger voters lean Democratic and older ones Republican, though that association itself has not been uniform over time.

The Washington Post