Only 34% of those polled ID as DEM
It looks like they did not weight by party id. They weighted the weighted the sample by demographics, sex,age,race, and location, but not party id. This is better in that it allows the poll to pick up ‘change’ type voters. There are probably more than a few registered Democrats, who probably still vote Democrat for local elections, who in the Presidential poll, stated Independent, or Republican when asked for party identification.