In election year, Donald Trump turns up at NASCAR event and does a lap

US President Donald Trump became just the second sitting president to attend the Daytona 500 on Sunday. He arrived on his Air Force One. (Source: USA Today)

Donald Trump served as grand marshal for the race and gave the command for drivers to start their engines. (Source: Reuters)

Donald Trump, with first lady Melania Trump by his side, addressed the crowd before the race and called the Daytona 500 "a legendary display of roaring engines, soaring spirits and American skill, speed and power". (Source: USA Today)

Donald Trump ended his remarks to chants of "U-S-A, U-S-A," and with his 2016 campaign tune, "You Can't Always Get What You Want" blaring over loudspeakers. (Source: USA Today)

The motorcade carrying U.S. President Donald Trump and first lady Melania Trump drives on the NASCAR Daytona 500 racetrack. (Source: Reuters)

Donald Trump also took a parade lap around the two-and-a-half-mile speedway in his armored limousine, leading the 40-car field before the green flag. (Source: Reuters)