White House Correspondents' Association President Jonathan Karl rebuked his colleague Jim Acosta of CNN for his conduct on the job.

Karl, chief Washington correspondent at ABC News, provided the criticism of his fellow White House reporter both in his new book Front Row at the Trump Show, released Tuesday, and during recent interviews.

In the book, he argued Acosta, who has had a multitude of verbal dust-ups with President Trump during press briefings, was "playing into the explicit Trump strategy of portraying the press as the opposition party" and encouraged him not to "give speeches from the White House briefing room."

Karl later told The Daily Beast, “Regarding Jim Acosta, to paraphrase Voltaire, I will defend to the death his right to report from the White House, but I have some issues with the style in which he has done so … We can be tough, we can call out things that are not true, we can be aggressive in our questioning, but I don’t think we should act like we are part of the resistance.”

Acosta has been one of the most frequent reporters to get into a disagreement with the president during briefings. The two notably argued the day after the 2018 midterm elections after the CNN reporter refused to hand over his microphone to a White House intern after the president declined to answer his question. The White House then suspended his press credential, which was later reinstated after the outlet filed a lawsuit.

More recently, Trump called a question from Acosta "nasty" and "snarky" after it implied the president initially downplayed the coronavirus.