President Barack Obama runs down a White House hallway with the family's Portuguese water dog, Bo, on April 13, 2009. Bo was a gift from Sen. Ted Kennedy and his wife, Victoria, to the President's daughters, Sasha and Malia.
President Barack Obama runs down a White House hallway with the family's Portuguese water dog, Bo, on April 13, 2009. Bo was a gift from Sen. Ted Kennedy and his wife, Victoria, to the President's daughters, Sasha and Malia.
The White House/Getty Images
Obama's dog, Sunny, goes out for a walk on the North Lawn of the White House on January 22, 2016.
Obama's dog, Sunny, goes out for a walk on the North Lawn of the White House on January 22, 2016.
Bill Alberter/CNN
The President, first lady Michelle Obama and their daughters, Sasha and Malia, pose with Sunny and Bo on Easter Sunday in April 2015.
The President, first lady Michelle Obama and their daughters, Sasha and Malia, pose with Sunny and Bo on Easter Sunday in April 2015.
Pete Souza/White House
Bo and Sunny lie on the South Lawn of the White House on August 19, 2013.
Bo and Sunny lie on the South Lawn of the White House on August 19, 2013.
Pete Souza/White House/Getty Images
Obama pets Bo outside the Oval Office on March 15, 2012.
Obama pets Bo outside the Oval Office on March 15, 2012.
Pool/Getty Images
Obama and the first lady read to children with Bo during the White House Easter Egg Roll on the South Lawn of the White House on April 25, 2011.
Obama and the first lady read to children with Bo during the White House Easter Egg Roll on the South Lawn of the White House on April 25, 2011.
Pool/Getty Images
Obama plays football with Bo on the South Lawn on May 12, 2009.
Obama plays football with Bo on the South Lawn on May 12, 2009.
The White House/Getty Images
The first family introduces Bo to the White House press corps at the South Lawn on April 14, 2009.
The first family introduces Bo to the White House press corps at the South Lawn on April 14, 2009.
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First lady Laura Bush, her Scottish terrier, Barney, and Santa Claus visit Brittanie Morris at the Children's National Medical Center on December 12, 2002, in Washington.
First lady Laura Bush, her Scottish terrier, Barney, and Santa Claus visit Brittanie Morris at the Children's National Medical Center on December 12, 2002, in Washington.
The White House/Getty Images
President George W. Bush holds up his dog, Barney, upon arriving at the South Lawn of the White House on February 3, 2002.
President George W. Bush holds up his dog, Barney, upon arriving at the South Lawn of the White House on February 3, 2002.
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President George W. Bush and first lady Laura Bush walk with their dogs, Barney and Spot, on the South Lawn on December 2, 2001.
President George W. Bush and first lady Laura Bush walk with their dogs, Barney and Spot, on the South Lawn on December 2, 2001.
MANNY CENETA/AFP/Getty Images
President Bill Clinton tosses a tennis ball for his dog, Buddy, at the White House on July 14, 1999.
President Bill Clinton tosses a tennis ball for his dog, Buddy, at the White House on July 14, 1999.
PAUL J. RICHARDS/AFP/AFP/Getty Images
Hillary, Chelsea and Bill Clinton depart the White House with Buddy on August 17, 1994.
Hillary, Chelsea and Bill Clinton depart the White House with Buddy on August 17, 1994.
LUKE FRAZZA/AFP/Getty Images
Clinton walks Buddy along the beach during sunset in Hilton Head, South Carolina, on December 30, 1992.
Clinton walks Buddy along the beach during sunset in Hilton Head, South Carolina, on December 30, 1992.
JOYCE NALTCHAYAN/AFP/AFP/Getty Images
First lady Barbara Bush talks to her dog, Millie, as she and granddaughter Barbara Bush wait for President George H.W. Bush to return to the White House on September 13, 1991.
First lady Barbara Bush talks to her dog, Millie, as she and granddaughter Barbara Bush wait for President George H.W. Bush to return to the White House on September 13, 1991.
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President Ronald Reagan presents first lady Nancy Reagan with a King Charles spaniel named Rex as an early Christmas present at their suite in a New York City hotel on December 6, 1985.
President Ronald Reagan presents first lady Nancy Reagan with a King Charles spaniel named Rex as an early Christmas present at their suite in a New York City hotel on December 6, 1985.
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President Gerald Ford sits with his daughter, Susan, on the floor of the White House's Great Hall watching their golden retriever, Liberty, circa 1978.
President Gerald Ford sits with his daughter, Susan, on the floor of the White House's Great Hall watching their golden retriever, Liberty, circa 1978.
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President Lyndon B. Johnson kneels and pets his beagle, Him, on the White House lawn in 1964. Johnson's other beagle was named Her.
President Lyndon B. Johnson kneels and pets his beagle, Him, on the White House lawn in 1964. Johnson's other beagle was named Her.
Pictorial Parade/Archive Photos/Getty Images
President John F. Kennedy and first lady Jacqueline Kennedy pose with their family and their dogs, German shepherd Clipper and Welsh terrier Charlie, on Christmas Day at the White House in 1962.
President John F. Kennedy and first lady Jacqueline Kennedy pose with their family and their dogs, German shepherd Clipper and Welsh terrier Charlie, on Christmas Day at the White House in 1962.
John F. Kennedy Library/Archive Photos/Getty Images
President Franklin Delano Roosevelt sits in his car with his Scottish terrier, Fala, on February 7, 1941.
President Franklin Delano Roosevelt sits in his car with his Scottish terrier, Fala, on February 7, 1941.
Hulton Archive/Hulton Archive/Getty Images
Roosevelt poses with Fala and a friend's granddaughter, Ruthie Bie, at Hill Top Cottage in Hyde Park, New York, around 1940.
Roosevelt poses with Fala and a friend's granddaughter, Ruthie Bie, at Hill Top Cottage in Hyde Park, New York, around 1940.
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Roosevelt sits behind the wheel of his car outside of his home in Hyde Park, New York, with his German shepherd, Major, in the mid-1930s.
Roosevelt sits behind the wheel of his car outside of his home in Hyde Park, New York, with his German shepherd, Major, in the mid-1930s.
FPG/Archive Photos/Getty Images
President Warren G. Harding, first lady Florence Harding and their Airedale terrier, Laddie Boy, watch from a balcony as the annual Easter Egg Roll takes place on the White House lawn, circa 1922.
President Warren G. Harding, first lady Florence Harding and their Airedale terrier, Laddie Boy, watch from a balcony as the annual Easter Egg Roll takes place on the White House lawn, circa 1922.
FPG/Archive Photos/Getty Images