Study title

Lists of Twitter acccounts of U.S. political elites from government, news media and political parties. Metadata on number of followers (as of December 2015), date of account registration and Twitter ID. List of news media actors contains major newspapers and national TV stations as well as politically influential media persons and individual journalists. List of politicians contains all members of U.S. congress, governors, presidential candidates and main accounts of the Republican and Democratic parties. Metadata on politicians contains political office and party affiliation. List of government actors contains federal agencies, secretaries, the President and affiliated accounts.