Former Starbucks CEO Howard Schultz, who has announced that he's considering running for president in 2020 as an independent candidate, failed an infamous litmus test on Wednesday.

After Schultz assured the hosts of MSNBC's "Morning Joe" that he's in touch with the average American because he "has walked in their shoes" and has been "on both sides of the equation," Mika Brzezinski asked him how much an 18-ounce box of Cheerios costs. The billionaire didn't answer. "I don't eat Cheerios, I'm sorry," he said.