Dana Perino sheds light on the impact 'presidential pooches' have on our White House history. From helping transcend political bickering to providing confidence during a nuclear standoff, dogs give Americans a glimpse into the personal side of presidents.

Dana Perino sheds light on the impact 'presidential pooches' have on our White House history. From helping transcend political bickering to providing confidence during a nuclear standoff, dogs give Americans a glimpse into the personal side of presidents.