US presidential election 2016: the state of the Republican race as the year begins | Republicans | The Guardian
Donald Trump Sweeps 5 States; Hillary Clinton Takes 4 - The New York Times
South flexes its political muscle in 2016 primaries | Facing South
2016 Republican Nomination Calendar Released for Primaries | Time
Third parties see hope in lackluster US tickets – DW – 05/30/2016
Super Tuesday: Delegate Tallies From Presidential Primaries And Caucuses - capradio.org
2016 United States presidential election - Wikipedia
Mail voting in 2020 US primaries became more common as COVID-19 spread | Pew Research Center
Detailed Maps of Where Trump, Cruz, Clinton and Sanders Have Won - The New York Times
Campaign 2016: Understanding the presidential election - The Washington Post
Turnout in 2016 primaries so far rivals 2008 record | Pew Research Center
Trump's big advantage: open primaries.
File:U.S. states (and territories) by election methods, 2016 (Democratic Party).svg - Wikimedia Commons
Democrats 2016: The Primary Map Still Favors Clinton – Sabato's Crystal Ball
The 2016 Primaries Were Weird. Will Things Get Even Weirder In 2020? | FiveThirtyEight
2016 Republican Party presidential primaries - Wikipedia
Lessons from the 2022 Primaries–what do they tell us about America's political parties and the midterm elections?
Some Democrats voting in GOP primaries to block Trump picks | AP News
2016 Democratic Party presidential primaries - Wikipedia
US election 2016: 7 June primary results - BBC News
/https://static.texastribune.org/media/images/2016/05/03/Ted_Drops_Out.jpg "Cruz Ending Campaign After Indiana Loss to Trump | The Texas Tribune")
Cruz Ending Campaign After Indiana Loss to Trump | The Texas Tribune
Chart: 2016 Presidential Primaries: Which Candidates Are U.S. Muslims Supporting? | Statista
2016 Presidential Election Calendar- WSJ.com
