The key access point for European Union statistics

"a data access system to UN databases"

"The primary World Bank collection of development indicators, compiled from officially-recognized international sources. It presents the most current and accurate global development data available, and includes national, regional and global estimates."

The World Bank's Worldwide Governance Indicators (WGI) project
"reports aggregate and individual governance indicators for 215 economies over the period 1996–2011, for six dimensions of governance"

Polls and Public Opinion on Government, Politics, Economics, Management

This is an independent public opinion survey research project that studies attitudes toward the press, politics and public policy issues. It is best known for regular national surveys that measure public attentiveness to major news stories, and for polling that charts trends in values and fundamental political and social attitudes.

"The United States Elections Project is an information source for the United States electoral system. The mission of the project is to provide timely and accurate election statistics, electoral laws, research reports, and other useful information regarding the United States electoral system"

Official vote counts for federal elections dating back to 1920 from the Clerk of the House of Representatives.