Figures for incumbent Senators include all contributions received beginning with the 1993-94 election cycle, unless they were elected more recently. All the numbers on this page are based on Federal Election Commission data. Feel free to distribute or cite this material, but please credit the Center for Responsive Politics. For most candidates, the richest source of large individual contributions will be the most populous metro areas within their state or district.
Many incumbents also draw significant sums from the nation's capital.
Generally, they consist of central cities of 50,000 or more plus surrounding suburbs. Contributions from areas outside any metro area are not included, nor are contributions from PACs.