This is not a big deal. So reweave the part with the attribution, and forget about it. If we pick on Obama for every trivial slip-up, it only diverts attention from his major failings.
His major failing is that he screws up everything.
Ignorant invalid quotes on the Oval Office floor covering are not trivial....It's the Oval Office for goodness sakes and it represents our country.....
Incompetence defines this administration.....in everything big or small. This is a trait that I have witnessed for 50 years.....attention to detail is the hallmark of success.