Barack Obama, U.S. Senator from Illinois and Democratic presidential candidate, right, and his wife Michelle Obama give each other a show of support...
President Barack Obama asks for a fist bump from a young girl as he speaks with patrons outside the Kozy Corner restaurant in Oak Harbor, Ohio, July...
President Barack Obama gives a fist-bump at the start of the Wounded Warrior Ride, a cycling event to help wounded members of the military restore...
President Barack Obama fist bumps with singer Aretha Franklin who sung during a farwell ceremony for Attorney General Eric Holder at the Justice...
President Barack Obama gives a fist-bump to 9-year-old Jacob Leggette of Baltimore, Maryland, for his 3D printed creations as he tours the 2016 White...
In this handout provide by the White House, U.S. President Barack Obama receives a fist-bump from a U.S. Soldier as he greets hundreds of U.S. Troops...
President Barack Obama fist bumps with a statue of a gorilla at a pub in Denver, Colorado, on July 8, 2014. AFP PHOTO/Jewel Samad
President Barack Obama fist-bumps middle-school student Adrianna Mitchell while participating in an "Hour of Code" event in the Eisenhower Executive...
President Barack Obama fist bumps a supporter after speaking at a campaign rally in Nashua, New Hampshire, on October 27, 2012. AFP PHOTO/Jim WATSON
President Barack Obama fist bumps with 4-year-old Luca Martinez as he departs the White House in Washington, DC, May 2, 2015. AFP PHOTO/JIM WATSON
President Barack Obama gives a young boy a fist bump as he greets guests after speaking about the economy at Shaker Heights High School in Shaker...
President Barack Obama gives a fist bump to Baylor University basketball guard Odyssey Sims after welcoming the 2012 NCAA Women's Basketball Champion...
In this handout provide by the White House, U.S. President Barack Obama holding a football, offers a fist-bump, to senior staff member Pete Rouse ,...
President Barack Obama does a fist bump with Ethan Gibbs, the son of Press Secretary Robert Gibbs, after arriving by Marine One on the South Lawn of...
Democratic presidential candidate Illinois Senator Barack Obama and North Carolina Governor Mike Easley bump fists at Sen. Obama's surprise...
President Barack Obama fist-bumps with a woman during a lunch visit to the West Tampa Sandwich Shop and Restaurant in Tampa, Florida, September 8...
President Barack Obama gives a fist bump to a young boy during a "Let's Move" tennis clinic during the White House Easter Egg Roll on the South Lawn...
President Barack Obama bumps fists with a Star Wars Stormtrooper as First Lady Michelle Obama waves to the crowd at the annual Easter Egg Roll at the...
Democratic presidential nominee U.S. Sen. Barack Obama fists bumps with Ethan Gibbs the son of Robert Gibbs the campaign communication director as he...