Trump communications director Stephen Cheung mocked Jen Psaki for leaving stationery at the White House, sparking a fierce comeback by the former press secretary on Thursday. Cheung launched his petty attack by telling followers that stationery with Psaki’s name at the top had been found in a cabinet at the White House,

MSNBC host Jen Psaki smacked back at White House communications director Steven Cheung after he tweeted a photo of stationery he found left behind "in a random cabinet" with her name on it, mocking him for trying to attack her for writing thank you notes.

Jen Psaki was put on blast Thursday for leaving behind relics of her time as a White House press secretary. It comes as the Trump administration is taking on a much different media strategy than its predecessor.