US Border Patrol Chief Out After Trump's Immigration Executive Order

Mark Morgan leaves his post Jan. 31, after less than a year on the job.

— -- U.S. Border Patrol Chief Mark Morgan is leaving his post, according to a statement from Kevin K. McAleenan, the acting commissioner of Customs and Border Protection, which oversees the patrol agency.

Morgan's departure is effective Jan. 31. Sources familiar with the circumstances of his departure said that his exit was not for cause and that the new administration is moving in a different direction.

After the November elections, Breitbart Texas published an op-ed by the National Border Patrol Council, the union representing border agents and support staffers, calling Morgan a "disgrace to the agency." The piece alleged that he "is worried because he knows that his comments attacking President-elect Trump's border security policies prior to the election has him in hot water and his position as the chief of the Border Patrol is tenuous at best."

The editorial finished by stating, "Morgan — a hand-picked Obama administration official — does not have the will necessary to secure the border for the citizens and legal residents of this country."

News of Morgan's exit comes one day after Trump signed two executive orders on immigration authorizing an increase in Border Patrol enforcement officers and laying the groundwork for building a wall along the U.S.-Mexico border.

ABC News' Arlette Saenz and Serena Marshall contributed to this report