Barack Obama became US President in January, 2009. Since then, the world has been watching him closely to see whether he keeps his promises about the economy , foreign policy and health care. But at home, he has also been under pressure from his two daughters to keep his promise: to give them a new dog as a gift for helping him with his election campaign . On Tuesday the nation's first dog, named Bo, came out. It is a six-month-old water dog which is black with a white chest and white paws . "Bo's got star quality," said President Obama as he and his family took a walk with the dog on the White House lawn  in front of reporters. He then joked, " I finally got a friend. It took some time," mentioning a famous saying, The dog is Obama's gift to    _   .
the reporters his wife his daughters his sons