Boomers are hanging onto large homes, boxing out millennials with growing families. That could hurt Biden in the election.

• Many boomers are holding on to their large homes, stressing the housing market for younger buyers.
• For millennials with growing families, purchasing a home has become even more difficult.
• For Biden and Trump, the issue of housing affordability could make or break their candidacies.

For baby boomers with growing families in the 1980s and 1990s, homeownership was a natural next step in their adulthoods.

But when their children moved out to pursue their own dreams years later, many of these boomers remained in their large homes. And at least for the foreseeable future, they're not going anywhere.