President Obama and former President Bill Clinton golf together in September 2011. The former president is campaigning for Obama, four years after the two men exchanged harsh words during the Democratic primary battle between Obama and then-Sen. Hillary Clinton. Chris Kleponis-Pool/Getty Images hide caption

itoggle caption Chris Kleponis-Pool/Getty Images

Republican presidential candidate Mitt Romney greets supporters in Aston, Pa., on April 23. Jessica Kourkounis/Getty Images hide caption

itoggle caption Jessica Kourkounis/Getty Images

The FlyRights mobile app, created by The Sikh Coalition, will be available for download on Androids and iPhones starting Monday, April 30. Courtesy of The Sikh Coalition hide caption

itoggle caption Courtesy of The Sikh Coalition