You can laugh about invincible ignorance (and its cousin, shamelessness) but it’s a huge asset in politics.
And AOC has it, too.
She knows very little about the federal government. And in fairness to her, why would she? She’s 29! She’s never held elective office! The federal government is really big and complicated and a lot of people who’ve spent their lives trying to reform it still can’t get their arms around its many, many problems.
What’s more, AOC doesn’t need to understand everything about the government in order to be an effective legislator. She can pick and choose where she wants to leverage her value by getting a deep grasp of a subject.