So far we have gotton Rasmussen polls on this race mainly and Survey USA has shown much more favorable poll numbers in the past towards the Dems. Quinn already said the tax increase would fund educational purposes not for new programs, I think that message has yet to get out to the voters. But Cohen doesn't help being on the ticket. The last PPP and R2K poll had it 3 or 4 pts well within the margin of error.
He says that the taxes would support education, but the tax legislation that he supports does not commit the proceeds to education. A version from two years ago did, but that was during Blago's years. There is a lot of mistrust in the state, and Quinn merely saying it will go to education is not as comforting in this cycle as it might be under other administrations.