Not just the one thing. Here's a small list of things she's said with a short rebuttal.

1 Unemployment is low because people are working 80 hours a week

The number of jobs or the amount of hours you work do not affect the unemployment numbers

2 “A 17-year-old can walk into a shop” and purchase an assault weapon

17 year olds cannot buy any kind of gun in America

3 Abolish ICE

Self explanatory

4 Capitalism won’t always exist in the world

She also said capitalism hasn’t always been here. 

5  “We’re gonna flip this seat red”

She obviously means turn it blue, but I am sure she and Bernie will turn a lot of seats red.

6  Settlements in Palestine

She claimed that Israel occupies land belonging to the Palestinians and are building settlements there. No Israeli in their right mind would build a house in lands controlled by the terrorists known as Palestinians

Again, I don't have anything against her and I think her heart is in the right place; but she can come off as a bit naive and uninformed, yes.