Inclusion Criteria:  Age 18-60; U.S. Veteran; Primary diagnosis of major depressive disorder (MDD) and a history of suicide attempt in the past year; Elevated score (>1SD above the normal mean) on rumination measure (Ruminative Response Scale); Based on the Columbia-Suicide Severity Rating Scale (C-SSRS) current suicidal ideation (either passive, i.e. "wish to be dead") or active ideation but with no intent to act on it immediately and no specific plan; Currently in psychotherapy treatment as usual (TAU) at the James J. Peters VA Medical Center. The investigators will include women and aim for the sample to be 30% women.  Exclusion Criteria:  Current substance use disorder; History of traumatic brain injury; neurological disorder, or other medical confound; compromised intellectual abilities (WASI45 FSIQ<70) The investigators will enroll six Veterans in each group and conduct six 10-week intervention cycles for a total sample of 36 Veterans.