Trump insisted he is `` the least racist '' when questioned by CNN 's Don Lemon . He was responding to allegations that racism motivated his questions about Obama 's degree , birth certificate . The Republican presidential nominee said on Tuesday night in a debate with Democratic rival Hillary Clinton that President Barack Obama's citizenship status should be investigated because of his alleged ties to terrorist organizations.
Trump insisted he is `` the least racist '' when questioned by CNN 's Don Lemon . He was responding to allegations that racism motivated his questions about Obama 's degree , birth certificate . African-American academic told CBS program that Trump used `` racism by inference ''