This seems a bit suspect to me:

Aug. 23, 2006 — - It is one of the more unusual battle lines in the culture wars.

Liberals, it is said, have a baby problem. They don't have enough of them, compared to conservatives. And this failure to replenish their ranks is a reason why they lose elections. Call it a fertility gap.

"The political right is having a lot more kids than the political left," Syracuse University professor Arthur Brooks says. "The gap is actually 41 percent."

Studying numbers from the General Social Survey -- a government survey of social trends -- Brooks found that 100 unrelated liberal adults have 147 children, while 100 unrelated conservatives have 208 kids.

That makes a difference, Brooks says, because "80 percent of people that express a political party preference are voting like their folks."

There's no link or reference to that last bit about the 80% voting like your folks rate, so I'm not taking it to heart. But still, I can understand the logic, and I wouldn't be surprised if it were true. But such assertions sound like a variation on "wimmin need to have more babies" to me. It's not about having babies, it's about educating people of all ages and reproductive classes about why certain political parties are screwing them over, and not paying child support. As it were.

Curious about your thoughts, readers. Why are you liberal (or not) and what role did your parents play in that? For the record: I don't have kids and don't plan to. I do have an impact on many other people's kids at my job, and I like to think that's even better than if I had had a litter of my own. Hat tip to Liz.