The former Hear'Say singer was unable to answer a question about which US presidential candidate she preferred because it was the first time she'd heard their names.
Shaw told The Sun: "I'm going to be honest. I've never heard either of these names before."
A source commented: "Suzanne can be a bit dizzy about foreign affairs."
The reality TV star revealed earlier this week that she suffered from depression and had taken to binge drinking after her career as a popstar floundered in 2002.