One day after JPMorgan Chase (JPM) CEO Jamie Dimon took a swipe at Sen. Elizabeth Warren, D-Mass., saying that he doesn’t know if she fully understands the global banking system, Warren responded in kind.

You didn’t think she was going to let this one go, did you?

According to a report from The Hill, Warren said not only does she fully understand the global banking system, it's her level of understanding that makes her an enemy of Wall Street.

From The Hill:

“The problem is not that I don’t fully understand the global banking system,” Warren said during an interview with The Huffington Post’s “So That Happened,” which aired on Thursday night.

“The problem for these guys is that I fully understand the system, and I understand how they make their money,” she said. “And that’s what they don’t like about me.”