The former US president met Mandela only briefly in 2005 but gave a eulogy at his funeral, hailing him as "the last great liberator of the 20th century."
Obama zutere Mandela nanị obere oge na 2005 mana o kwuru okwu na olili ozu ya na Mandela "na-eme ka m chọọ ịbụ ezigbo mmadụ" ma na-akpọ ya "onye mmeri ikpeazụ nke narị afọ nke 20."