One subtle difference that I wonder about: question order.
Siena asks candidate favs, then horse race.
Monmouth is horse race, then favs.
Very similar favs:
Monmouth: Faso 34/33, Delgado 36/21
Siena: Faso 37/38, Delgado 34/22
But does putting ballot test 2nd hurt unknown Dem?

— Nate Cohn (@Nate_Cohn) September 12, 2018