The mother of Sarah Palin's future son-in-law was arrested on drug charges Thursday, Politico.com reported.
Sherry L. Johnston is facing six felony drug counts. She is the mother of Levi Johnston, the father of Bristol Palin's child. The baby is due this weekend.
Bristol Palin and Levi Johnston are planning to get married in the summer.
Sherry Johnston's free on $2,000 bond.