The 2016 United States Presidential Election.
Democratic Presidential Nomination
The following ran for president as a Democrat: Lincoln Chafee, Martin O'Malley, Hillary Clinton, and Bernie Sanders were all seeking the Democratic nomination. In the early polls, Clinton was leading. Over time, though, Clinton's poll numbers began to fall, but Clinton still won Iowa by a margin of 36:29:4:2. Clinton soon suddenly withdrew, due to facing criminal charges for her actions of covering up emails involving Benghazi, Libya. An influx of Clinton supporters then flew to Chafee and O'Malley. Sanders won New Hampshire by a large margin, but South Carolina was much closer, but Sanders still won. Since the poling margins between Chafee, O'Malley, and Sanders were so close, it was a major debate as to who would get the Democratic nomination. In the end, the Democrats nominated Sanders as their nominee for president.
Bernie Sanders picked Maine Independent Senator Angus King as his running mate in the quest for the White House.
Republican Presidential Nomination
Many candidates ran for president on the Republican side, so just the notables that were considered front runners are listed: Donald Trump, Carly Fiorina, Jeb Bush, Ben Carson, Marco Rubio, Rand Paul, and Lindsey Graham. Trump led the polls early, winning the Iowa caucuses. The margin began to narrow for Trump, with Carson winning New Hampshire and Graham winning South Carolina. As the polls on the Republican side were also very tight, the Republicans had to pick one; they (the voters) eventually chose Carson.
Ben Carson picked the president pro tempore of the United States Senate (Utah Republican Senator Orrin Hatch) to be his running mate.
Ultimately, Bernie Sanders was elected to the White House in a landslide victory.