Issued by former president Donald Trump, Presidential Proclamation 10043 bans entry to Chinese students and researchers deemed "security threats". - AFP SAN FRANCISCO (China Daily/ANN): A group of students in China have one thing in common - they have been denied visas to pursue postgraduate studies in the United States due to a Presidential Proclamation issued in May last year. Issued by former president Donald Trump, Presidential Proclamation 10043 bans entry to Chinese students and researchers deemed "security threats" for alleged links to the Chinese military. A handwritten note on a student's visa refusal sheet obtained by China Daily reads: "Per Presidential Proclamation 10043, because of attendance at Harbin Institute of Technology, we are unable to issue your visa at this time."