Meningsmålinger og surveys

• United States Census Bureau
  The United States Census Bureau is a leading provider of quality data. It provides current facts and figures about America’s people, places, and economy.
• Pew Research Center
  Pew Research Center is a nonpartisan fact tank that informs the public about the issues, attitudes and trends shaping the United States and the world. The Center conducts public opinion polling, demographic research, content analysis and other data-driven social science research on a wide range of political issues. It has, for example, highly useful collections of data on political polarization, U.S. elections, Joe Biden and Donald Trump.
• YouGov
  YouGov US provides a wide range of surveys from Joe Biden’s approval ratings to Americans’ view on Trump’s eligibility.
• 538 (FiveThirtyEight)
  538, originally rendered as FiveThirtyEight, is a website that focuses on opinion poll analysis, politics, economics, and sports blogging in the United States. The website, which takes its name from the number of electors in the United States electoral college, was founded in 2008 as a polling aggregation website with a blog created by analyst Nate Silver. It is now owned and run by ABC News.