"PolitiFact is a fact-checking website that rates the accuracy of claims by elected officials and others who speak up in American politics" (from website)
Older Congressional Research Reports can be found here. Unselect the box ALL and select CRS Reports 1916-2010
This resource searches the full text of three historical newspapers, the Chicago Defender (1909-1975), the Los Angeles Times (1881-1993), and the New York Times with Index (1851-2014).