Final answer:
Nancy Pelosi is the current congressional leader representing California in the U.S. House of Representatives.
Step-by-step explanation:
The current congressional leader representing California in the U.S. House of Representatives is Nancy Pelosi. She serves as the Speaker of the House. Pelosi has represented California's 12th congressional district since 1987 and has been the Speaker of the House since 2019.
Learn more about Representation of California in the U.S. House of Representatives