Defense Secretary Ash Carter will not pursue further charges against David Petraeus, the former CIA director, who pleaded guilty last year to mishandling classified information by sharing it with his mistress.

"Given the Army's review, Secretary Carter considers this matter closed," Stephen C. Hedger, assistant secretary of defense, said in a letter obtained by the Washington Examiner.

The letter was addressed to Sen. John McCain, R-Ariz., and Sen. Jack Reed, D-R.I., the top legislators on the Senate Armed Services Committee. In a Jan. 20, McCain and Reed urged Carter to drop the matter, and to let Petraeus keep his full, four star general rank.

A federal court already fined Petraeus $100,000, and sentenced him to two years probation. He received support from a host a influential Washington figures who wrote a federal judge asking for leniency for the general.

Petraeus was ensnared in this scandal and forced to resign his CIA post in November 2012, days after the presidential election, due to sharing secret information with his mistress and biographer Paula Broadwell

The scandal dimmed, but not completely erasing Petraeus' reputation in many circles, where he is still well regarded. Despite his resignation, he has continued to advise the White House on Iraq and other foreign policy matters.