The two-time Oscar winner lends her voice to the tough and savvy Assemblywoman Maxine Lombard, whom Lisa brings to Springfield to stop Mr. Burns' fracking operation. In this exclusive sneak peek of Sunday's episode (8/7c, Fox), Assemblywoman Lombard wastes no time planning her attack strategy on the local tycoon.
"I'm going to hit this Mr. Burns with a politician's most powerful weapon," she tells Lisa.
So what is that exactly? Watch the exclusive video below to find out:
The Simpsons airs Sundays at 8/7c on Fox.