While one of the words was out of place, he still recited the oath administered by the Chief Justice. There are other legitimate issues to bring, but I don’t think this is one. He can’t be happy about how it went down though ... the historical moment was mildly marred by the confusion.
I used the incident to make my son feel better today. He was nervous about an oral report he has to give in class today. I told him Obama messed up the oath, but he’s still the President. My kids found this quite funny. They noticed the flub when they watched it at school.