Sarah Palin's oldest son has been charged with assaulting his father at the family's home in Alaska.
An affidavit by a Wasilla Police officer said Mrs Palin told police on Saturday night that Track Palin was "freaking out" and on some type of medication.
The affidavit said Todd Palin was bleeding from cuts on his head. He told police the dispute began when Track Palin called wanting to get his truck.
Todd Palin said he told his son not to come and got his pistol "to protect his family".
Track Palin told police he tried to get in the door, but it did not open and he broke a window and disarmed his father.
He was arraigned on charges, including misdemeanour assault, yesterday.
In 2016, he was suspected of punching his girlfriend, who then became concerned that he was going to shoot himself with a rifle, court documents said.
He faced several charges related to domestic violence but had some dismissed in exchange for pleading guilty to possessing a firearm while intoxicated.
His then-girlfriend later filed for custody of their child, and in January she requested a protective order.
AP