Here's a fuller quote from a different article:

“In this op-ed that Bezos paid for in The Washington Post, there was a veiled threat — it was the elite saying if you want this job, you just stepped out of line,” said Ocasio-Cortez. “What’s funny about that is they assume my ambition is positional. They assume my ambition is a title or a seat. My ambition is way bigger than that. My ambition is to change this country. Presidents come and go, elected officials come and go, single payer healthcare is forever.”