Today, though, the gender gap -- that men lean right and women lean left -- has become a political truism, and a series of new studies suggests that gender plays an even bigger role in politics than many believed. Having a son tends to make parents more conservative, it appears, while a daughter makes them more liberal. The parental has become the political.Steven E. Landsburg says that daughters cause divorce.
These statistics are curious because it would seem that correlation implies causation. It wouldn't necessarily mean that liberal politics is better for girls, but might mean that people have that perception.