A person who exerts strong political or economic influence, especially by virtue of the individuals and votes he or she controls.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "power broker" in a sentence
"I talked with Roz Wyman, the veteran Democratic power broker who as a young city councilwoman had famously brought the Dodgers to Los Angeles."