According to Federal Election Commission data, the REALTORS Political Action Committee (RPAC) contributed $3.75 million to make them the largest PAC contributor to U.S. Congressional candidates in the 2006 election. The next largest contributor at $2.95 million was The National Beer Wholesalers Association PAC, followed by The National Association of Home Builders’ Build PAC with $2.90 million.
The Realtor’s RPAC’s contributions were the most bi-partisan with 51 percent going to Republicans and 49 percent going to Democrats.
More Info available at: Top 20 PAC Contributors to Federal Candidates, 2005-2006 – opensecrets.org