Geoffrey Skelley of FiveThirtyEight –
There are different “gaps” in American politics, but one that has consistently shown up in recent presidential elections is the age gap. That is, younger voters tend to vote more Democratic and older voters tend to vote more Republican.
In 2016, for instance, President Trump performed best among voters 65 years and older. He also won among those between the ages of 45 and 64. So looking ahead to November, you might expect Trump to once again do well with older voters. However, recent public polls — and the president’s own private polling — suggest that Trump may be doing worse among older voters against former Vice President Joe Biden, the presumptive Democratic nominee.