A baby boom among conservatives could push the nation’s politics further right in the coming decades, especially since liberals aren’t having as many children, according to a new study of online dating habits of conservatives and liberals.

The study featured in a Harvard University Shorenstein Center review of recent surveys released Tuesday on how political polarization of the nation is impacting Washington’s budget talks is the first to challenge left-leaning pundits who have claimed that as the white population shrinks, the GOP will become marginalized.

Instead, the study in the authoritative journal Political Behavior, conducted by scholars from Brown and Penn State University, suggested that liberals could be the endangered species in the coming decades as conservatives, typically white, have more children than liberals. And those children, this study and others show, commonly follow the politics of their parents.