Trump left NATO summit on old Air Force One, not new jet from Qatar  The Washington PostSecurity Precaution Led Trump to Use Old Air Force One in Leaving Turkey  The New York TimesQuestions arise over Qatari-donated Air Force One after Secret Service advised Trump to take old plane  CBS NewsSecurity concerns prompted Trump to depart Turkey on older plane while sending Qatari-donated jet ahead, officials say  CNNSecurity decision led President Trump to take older Air Force One when he left Turkey  NBC News