From the Summary: "Election Day is the day legally established to select public officials in the United States. General elections for federal offices--President, Vice President, and U.S. Congress--are held on the Tuesday after the first Monday in November in even-numbered years. Citizens vote for President and Vice President every four years, Representatives every two years, and Senators every six years; this excludes special elections to fill unexpired terms. State and local elections are often but not always held on the same day as federal elections. This report provides responses to frequently asked questions about the history and current legal status of Election Day. It discusses how the first federal elections were held, how a single Election Day for federal offices was established in the 19th century, why the Tuesday after the first Monday in November was selected as Election Day, and related issues."
CRS Report for Congress, R46413
Congressional Research Service: https://crsreports.congress.gov/