Powerline: CNN: When it rains, it pours...
Ok, people misspeak and make mistakes. Typically I would give some one the benefit of doubt someone simply misspoke and wasn't paying attention, even if this mistake was particularly dumb on Poppy's part. Given how tedious and adversarial CNN has made itself in challenging President Trump over the slightest slight, we are going to call them out when they screw up.
Political Clown Parade: CNN's Poppy Harlow abuses the privilege of being stupid
Daily Wire: Hilarious CNN gaffe about anthems
A little help to Poppy on the French anthem, and no the song the Germans are singing is not Trump's anthem (as much as CNN would like to think so).
Rush Limbaugh: It's the end of CNN
A collection of sites known for appreciation of Rule 5 and National Anthems: