Republican presidential nominee Donald Trump meets with the Republican Leadership Initiative at Trump Tower in New York on Thursday, August 25. To his right is former Republican presidential candidate Ben Carson.
Hillary Clinton, the Democratic presidential nominee, greets law enforcement officers at Reno-Tahoe International Airport in Nevada on Thursday, August 25.
US Secretary of State John Kerry, center left, meets with Muhammad Sa'ad Abubakar, Sultan of Sokoto, and Governor of Sokoto Aminu Tambuwal in Sokoto, Nigeria, on Tuesday, August 23.
Jill Stein, the Green Party presidential candidate, attends a news conference in Washington on Tuesday, August 23.
Democratic vice presidential nominee Tim Kaine, left, tours the Primus Aerospace factory with President and Chief Executive Randy Brodsky in Lakewood, Colorado, on Tuesday, August 23.
Libertarian presidential nominee Gary Johnson, left, shakes hands with a supporter as he arrives for a campaign rally in Concord, New Hampshire, on Thursday, August 25.
US Sen. Joni Ernst, a Republican from Iowa, right, leads a group of motorcyclists during the second annual Roast and Ride in Des Moines, Iowa, on Saturday, August 27. Ernst, who in 2014 won the Senate seat vacated by Democrat Tom Harkin when he retired, has turned her Roast and Ride into the conservative answer to the Harkin's legendary Steak Fry fundraiser, which auditioned dozens of presidential candidates over its 37-year history.
People listen to the United States national anthem during a naturalization ceremony at the National Mall in Washington on Thursday, August 25.