Sorry about the late reply, but I only noticed this just now. It is quite logical actually, and consistent with the voting pattern across the Western world.
Even with a country as left-wing as us (New Zealand), the Labour Party (and Greens and now defunct Alliance Party) never got more than 50% votes from Pakeha (white) males, probably not since Michael Joseph Savage, our FDR and Prime Minister from 1932 to 40 (a majority always vote right at least in recent times).
Labour and Greens always have key constitutencies from Pakeha women, Maori, Pacific Islanders, and other migrants (but not Asians), and a small segment of ageing '68 protesters and academics/cultural commentators. But having said this, I always dispute the words "women who have never been married are most likely to vote for challenger Senator John Kerry.... Conversely, women who support Kerry are 45 percent more likely to visit "Financial Information" and "Advice" sites"". I got to know my sister-in-law back when she was just married (I only just met her at my brother's wedding). She's a financial analyst working at a major bank and she's about as free market as I know (social security/superanniuation reforms, free trade) and she never looks like she's a Dem supporter. I think single women who are prying jobs in finance could lean conservative as well.