Interest of R.W.B.C.

Tufte, Justice.

[¶ 1] Richard Colling appeals a district court judgment awarding Adrienne Beh-rens primary residential responsibility of their child, R.W.B.C. We affirm, concluding the record supports the district court’s findings.

I

[¶ 2] Colling and Behrens dated from 2012 until 2014, and their son, R.W.B.C., was born in 2013. In 2014, Colling sought primary residential responsibility, and two years of contentious litigation followed. Each parent alleged the other parent had committed domestic abuse and frequently used drugs. An interim order awarded temporary custody to Colling after the…