White House Communications Director Anita Dunn will be stepping down from that position. Dunn was the one who started the Obama fights Fox News sage when she 'called out' Fox News. This move is not necessarily related to the exchange as she took over the position on an interim basis. A cynical person might think that she was chosen to launch the first attack against Fox New because she did not have a permanent position, but that starts to go a bit outside the scope of this post.
"White House communications director Anita Dunn will step down from her post at the end of the month and Dan Pfeiffer, her deputy, will take over, according to sources familiar with the move.
Dunn, a longtime Democratic media consultant, took over the job on an interim basis earlier this year when Ellen Moran abruptly left the post to take a job at the Commerce Department. Dunn will return to Squier Knapp Dunn, the consulting firm where she is a partner, but will remain as a consultant to the White House on the communications and strategic matters."