America's president is widely viewed as the most powerful person on Earth. But how would the leader of the free world stack up as a babysitter?

We may never know, but it sure is fun to guess.

A visitor helps pin a poppy on Franklin Roosevelt's lapel in 1944. (Bettmann/CORBIS)

John Kennedy buddies up to five-year-old Debbie Sue Brown, the poster child for the 1962 March of Dimes, on Jan. 12, 1962. (AP Photo/HLG)

Lyndon Johnson is swarmed by children as he feeds a pair of beagles on the south lawn of the White House on May 6, 1964. (AP Photo/HWG)

Richard Nixon lets two young boys play with one of the White House pets on Feb. 5, 1969. (AP Photo)

Jimmy Carter holds little Patricia DiMino while touring downtown Plains, Ga., on Feb. 12, 1977. (AP Photo)

Ronald Reagan is taught a thing or two about computers while visiting the Congress Heights Elementary School in Washington, D.C. on March 12, 1984. (AP Photo/Scott Applewhite)

George H.W. Bush holds a smiling four-month-old as he tours a ward for babies abandoned by drug-addicted mothers at D.C. General Hospital on Sept. 7, 1989. (AP Photo/Barry Thumma)

Bill Clinton multitasks, holding a baby in each arm, during a visit to an Arlington County, Va., health clinic on Feb. 12, 1993. (AP Photo/Greg Gibson)

George W. Bush lifts an infant during a campaign rally in Las Vegas, Nev., on Oct. 14, 2004. (Mario Tama/Getty Images)

President Obama tries to make six-month-old Talia Neufeld laugh on June 14. (Official White House Photo by Pete Souza)