Conflating Lobbying and PACs: The Surprisingly Low Overlap in Organizational Lobbying and Campaign Expenditures

ABSTRACT This article investigates whether campaign contributions and lobbying are complementary, substitutive, or distinct forms of organizational political engagement. Our study reveals minimal overlap between organizations that engage in lobbying and those that make campaign contributions despite the perception that these activities are interchangeable forms of “money in politics.” Using comprehensive contribution and lobbying report data from 1998 to 2018, we find that most politically active organizations focus exclusively on either lobbying or making campaign contributions. Only a small percentage of organizations engage in both activities. This finding challenges the assumption that these forms of political activity are inherently linked. The majority of organizations engaged in political activity do so exclusively through lobbying. However, the top lobbying groups spend the most money and almost always have affiliated political action committees (PACs). Most lobbying money is spent by a small number of big spenders—organizations that also have affiliated PACs. Organizations that both lobby and make campaign contributions tend to be well resourced and rare.