Republicans Republicans

Walter Mondale, the 1984 Democratic presidential nominee, pumps his fist during his acceptance speech at the Democratic National Convention in San Francisco. Anonymous/AP hide caption

toggle caption
Anonymous/AP

Donald Trump greets supporters after speaking at a caucus night watch party at the Treasure Island Hotel & Casino in Las Vegas. Trump is favored to do well Super Tuesday. Ethan Miller/Getty Images hide caption

toggle caption
Ethan Miller/Getty Images

A voter marks a ballot during the New Hampshire primary. So far just a small percentage of votes have been cast. But that changes after Super Tuesday. David Goldman/AP hide caption

toggle caption
David Goldman/AP

NPR's Politics Podcast Explains Super Tuesday

  • Download
  • <iframe src="https://www.npr.org/player/embed/468249702/468466088" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Donald Trump speaks at a rally in Kiawah Island, S.C., on Saturday. Trump followed up a big win in New Hampshire with another in South Carolina and now has a clear shot at the GOP nomination. Aaron P. Bernstein/Getty Images hide caption

toggle caption
Aaron P. Bernstein/Getty Images

Republican presidential candidate Donald Trump speaks at his election night party February 20, 2016 in Spartanburg, South Carolina. The New York businessman won the first southern primary decisively. Spencer Platt/Getty Images hide caption

toggle caption
Spencer Platt/Getty Images

Barbie Byrd, of Columbia, S.C., joins a group of demonstrators on the grounds of the South Carolina State House calling for the Confederate battle flag to remain on the Capitol grounds in June 2015. Win McNamee/Getty Images hide caption

toggle caption
Win McNamee/Getty Images

Confederate flag radio ad/robo call

  • <iframe src="https://www.npr.org/player/embed/467427120/467427805" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Activists with People For the American Way demonstrate outside the Supreme Court on Monday, calling on Congress to give consideration to whomever President Obama nominates to replace Antonin Scalia. Bill Clark/CQ Roll Call/Getty Images hide caption

toggle caption
Bill Clark/CQ Roll Call/Getty Images

An American flag flies at half-staff outside the U.S. Supreme Court after the death of Justice Antonin Scalia. The fight to replace him could be historic, resulting in the longest vacancy in history. Brendan Smialowski/AFP/Getty Images hide caption

toggle caption
Brendan Smialowski/AFP/Getty Images