The Dirksen Congressional Center
Congress for Kids: Elections: Primary Elections
Find out how the field of Presidential candidates gets narrowed down in the primary election.
PBS
Pbs Online News Hour: Open Season
This Online NewsHour forum features a law professor and a political scientist debating the value of open primaries in the states.
270 To Win
270towin: 2020 Presidential Election Calendar
2020 presidential election calendar includes known dates for state primary and caucus events, party conventions and presidential debates.