New Quinnipiac poll of Dems and Dem-leaners nationally:

Warren 27 (!)
Biden 25
Sanders 16
Buttigieg 7
Harris 3 (!)

In August, Biden had 32 and Warren had 19.https://t.co/FuWIhkszAf

— Greg Sargent (@ThePlumLineGS) September 25, 2019