Highly suspicious of those Roe vs. Wade Numbers. I expect people simply don't understand what it is. Gallup's annual abortion poll found the pro-choice side ahead by a scant 1% this year, 47-46: http://www.gallup.com/poll/1576/abortion.aspx
What's to be suspicious of? The median position on abortion in this country is in favor of additional restrictions, but not a outright ban. Additional restrictions on second trimester abortions while leaving first trimester abortions as available as they currently are is what the polls have been showing what people want for some time now.
First Trimester ends after week 13, Roe protects abortion through the 20th week. So by that measure, Roe is to the political left of the country.