Johnson Amendment

The Johnson Amendment is a provision in the U.S. tax code, since 1954, that prohibits all 501(c)(3) non-profit organizations from endorsing or opposing political candidates. Section 501(c)(3) organizations are the most common type of nonprofit organization in the United States, ranging from charitable foundations to universities and churches. The amendment is named for then-Senator Lyndon B. Johnson of Texas, who introduced it in a preliminary draft of the law in July 1954.