As you two posted, she did make a grammatical error. Not huge, IMO.
As to the picture. Follow the link to Breitbart. After the fourth paragraph, my computer has the words “Show this post on Instagram.” Click on that. You do not have to log in to Instagram. I clicked the X to make that notification go away. Then I saw her picture. I bet she could have figured that out!
There are far more mistakes in what she said than the one pointed out. For example...INCOMPLETE SENTENCES and THE MISUSE OF THE WORD FUN WITH NO ADJECTIVES; not to mention the fact that she has lousy vocabulary skills.
When I went to school, she would have FLUNKED 3rd grade; for such poor verbal and probably writing skill.