RPAC, "the voice of REALTORS® on Capitol Hill". Since 1969 RPAC has been promoting the election of pro-REALTOR® candidates across the United States. During the last federal election cycle alone, RPAC contributed over $12 million to pro-REALTOR® candidates to Congress, making it the number one trade association political action committee in the nation. Why has RPAC been successful? Because RPAC is not a charity. RPAC is a business.