Michael Morell, who served as acting director and deputy director of the CIA from 2010-13, announced Friday that he will be supporting former Secretary of State Hillary Clinton over Donald Trump in November.

In an op-ed in the New York Times, Morell — who has served presidents of both parties — argued that Clinton is "highly qualified" for the post and has the ability to keep America safe before going on to bash the Republican presidential nominee. Trump, according to Morell, is not only unqualified for the job, but "may well pose a threat to our national security."

"Two strongly held beliefs have brought me to this decision," Morell began. "First, Mrs. Clinton is highly qualified to be commander in chief. I trust she will deliver on the most important duty of a president — keeping our nation safe. Second, Donald J. Trump is not only unqualified for the job, but he may well pose a threat to our national security."

After praising Clinton for her work in the Situation Room during her four years as secretary, noting how she avoided bringing politics to the table, Morell lambasted Trump for having zero foreign policy experience and having traits that could make him a "dangerous" commander in chief.

"In sharp contrast to Mrs. Clinton, Mr. Trump has no experience on national security," Morell said. "Even more important, the character traits he has exhibited during the primary season suggest he would be a poor, even dangerous, commander in chief."

"These traits include his obvious need for self-aggrandizement, his overreaction to perceived slights, his tendency to make decisions based on intuition, his refusal to change his views based on new information, his routine carelessness with the facts, his unwillingness to listen to others and his lack of respect for the rule of law," he added.

He specifically hit out at Trump for his past comments about Russian President Vladimir Putin and his calls to halt the entry of Muslims into the United States.

Morell worked at the CIA under Presidents George W. Bush and Barack Obama before retiring in 2013 to pursue other opportunities.