Continuing a tit-for-tat battle with CNN on Thursday, President Donald J. Trump posted another comment about an article he contends was “fake news.”

In his tweet, Trump said CNN is now on a frantic hunt for a source that doesn’t exist, bringing their “credibility” into question.

Trump tweeted: CNN is working frantically to find their “source.” Look hard because it doesn’t exist. Whatever was left of CNN’s credibility is now gone!