Article continues below advertisementKaroline Leavitt and Kaitlan Collins had a tense moment during a White House press conference.Article continues below advertisementThe clash went down on Thursday, December 11, as the White House Press Secretary discussed fresh inflation numbers, noting the drop from 2.9 to 2.5 percent since Donald Trump took office in January. The CNN journalist then jumped in with a pointed question.Article continues below advertisementSource: New York Post/YouTubeKaroline Leavitt and Kaitlan Collins clashed during a White House briefing.