Judge Amy Berman Jackson said Friday she will stick to her ruling that former Trump campaign chairman Paul Manafort knowingly lied about contact with a Russian associate, Konstantin Kilimnik, thus violating Manafort's plea agreement, according to CNN.

Quick take: Manafort — whose legal team pointed to his poor health and low likelihood for committing future crimes — presented letters of support earlier on Friday as well as a 40-page document, appealing to Jackson to avoid a life sentence for conspiracy and witness tampering. He will be sentenced by a judge in Virginia federal court next Thursday for crimes including tax fraud, bank fraud and lying on federal financial documents, followed by a second sentencing hearing in Jackson's courtroom March 13.

Go deeper: Paul Manafort seeks prison sentence "substantially below" 10 years