This article introduces a comprehensive source for gubernatorial campaign finance data spanning the U.S. from 1977 to 2001.

Data & Methods Overview

We compiled detailed annual candidate expenditure records alongside triennial/cadential descriptions of state-level campaign finance laws during this period.

Key Features:

* Documented candidate spending in gubernatorial elections across all 50 states for the years listed

* Provided descriptions of applicable campaign finance regulations on a less frequent basis (triennial and biennial)

* Addressed critical gaps identified through evaluating existing sources

Reviewing Existing Sources

Our work systematically examines previous attempts to gather comparable state-level political data, highlighting their limitations.

We found that:

* Current available datasets for cross-state comparison often lack completeness or uniformity

* Data collection faces inherent challenges due to significant variation in state reporting systems and legal frameworks

Overcoming Collection Challenges

This study details the practical difficulties encountered when aggregating political data across multiple states.

We discovered that:

* Standardizing data from diverse sources requires careful attention to measurement discrepancies

* The resulting compilation offers valuable insights for improving cross-state research methodologies

* These lessons apply broadly to researchers working with state-level datasets in various domains of political science