Republican presidential candidate Donald Trump attends a dinner for the Iowa Faith and Freedom Coalition in September. Photographer Nate Gowdy has been on the campaign trail since August, taking photos of presidential candidates and their supporters.
A flash of light obscures the head of U.S. Sen. Bernie Sanders as he speaks in Des Moines, Iowa, in October.
Hillary Clinton arrives at a fundraiser in Des Moines in October.
Mike Huckabee is seen at the dinner for the Iowa Faith and Freedom Coalition.
A photographer snaps a shot of U.S. Sen. Ted Cruz during a rally in Hudson, New Hampshire, in January.
Supporters of U.S. Sen. Rand Paul attend a town hall in Seattle in August.
New Jersey Gov. Chris Christie poses for a photo in Raymond, New Hampshire, in October.
U.S. Sen. John McCain surprises a bingo hall patron in Manchester, New Hampshire, where presidential candidate Lindsay Graham was campaigning in October.
U.S. Sen. Marco Rubio signs autographs at a Super Bowl watch party in Manchester, New Hampshire.
Jeb Bush attends a town hall in Mason City, Iowa, in September.
Cruz helps himself to a taste of his daughter's gelato in April. The candidate was campaigning in Milwaukee.
Ben Carson poses at a Republican caucus site in Las Vegas in February.
A campaign sign for Ohio Gov. John Kasich is seen at a town hall in Bow, New Hampshire, in October.
A Sanders close-up at a Iowa fundraiser in October.
Clinton supporters rally in Seattle in March.
A Republican attends a GOP debate in February.