Obama forgot to review "Dreams from My Father" before his speech at today's funeral for Noname.
In the book, it says he met his father at least once, in 1971 when he was 10 years old. https://en.wikipedia.org/wiki/Dreams_from_My_Father#Narrative
But in his eulogy today, he says he never knew his father. https://www.nytimes.com/2018/09/01/us/politics/barack-obama-john-mccain-funeral-eulogy.html at 3:30 .