Celebrity Dog Whisperer to President Obama: 'Be a Pack Leader' Cesar Millan says the Obama family has to set rules, boundaries and limitations for the dog By Alexis Chiu Published on April 13, 2009 01:40 PM Share Tweet Pin Email Photo: Valerie Macon/Getty; Simon Dawson/Bloomberg News/Landov President Obama may be the leader of the political pack, but it will take work to make sure he holds that title inside the White House with the new First Puppy, Bo. So says dog behavior expert Cesar Millan (a.k.a. The Dog Whisperer), who has some words of advice for Obama, 47, his wife Michelle, 45, and daughters Sasha, 7, and Malia, 10, who unofficially announced their adoption of the Portuguese Water Dog puppy on Sunday. “When I watch President Obama speak, it’s clear that calm, assertive energy is something that comes naturally to him,” Millan, whose National Geographic Channel series enters its fifth season this fall, tells PEOPLE Pets. “But often men and women who are leaders in the workplace don’t apply this ‘pack leader’ frame of mind with their dogs. That’s how problems develop. “It isn’t just the President who has to set rules, boundaries and limitations for the dog,” adds Cesar, who with wife Ilusion has two sons, Calvin, 10, and Andre, 14. “Michelle and the kids have to be pack leaders, too! For the rest of Millan’s advice to the Obama family, visit People.pets!