“The survey of 621 registered voters has been weighted for age, race, gender and political affiliation. The poll has a margin of error of plus or minus 4 percent.”
Should read:
“The survey of 621 registered New York registered Democratic voters has been over-weighted for elimination of anyone over the age of 45, of the white race, male heterosexual gender and conservative political affiliation. The poll has a no real margin of error but just for grits and shins we’ll tell you it’s something along the lines of plus or minus 4 percent.”
you’ve summed it up nicely..