Seriously?
How is this a monumentally stupid question?
"Hi, Senator Sanders. So my father's family left Soviet Russia in 1979 fleeing from some of the very same socialist policies that you seem eager to implement in this country. So my question is, how do you rectify your notion of democratic socialism with the failures of socialism in nearly every country that has tried it?" Samantha Frenkel-Popell asked.
It never occurs to you why America's economy is always the best in the world? You disagree with her because you support the idiotic ideas that have been tried elsewhere and led to wide spread suffering.