FILE - In this Aug. 15, 2008, file photo, President George W. Bush, carrying his dog Barney, waves as he arrives at TSTC airfield in Waco, Texas, to begin his summer vacation at his ranch near Crawford Texas. President Donald Trump isn't hiding the fact that he isn't a dog person. While he appeared impressed when describing the drug-detecting abilities of German shepherds that work for the U.S. Secret Service, he made it clear that he can get by in his daily life without the slobbery canine companionship welcomed by many of his predecessors.(AP Photo/Rod Aydelotte, File)