The headline poses the question: "How much do voters know."
The answer: Not much. Little enough, in fact, to send sentients whimpering to their beds.
Reporter Alexander Burns presents the case more gently:
“The first lesson you learn as a pollster is that people are stupid,” said Tom Jensen of Public Policy Polling, a Democratic polling firm.
The rest of the Politico report expands the theme, and folks should read the whole thing if they are interested in the burning issue of the day: "Why are things so TARFU?"