Story highlights

Douglas Kennedy was arraigned Thursday on on misdemeanor charges

He knocked down a nurse while he was holding his newborn son, attorneys say

Kennedy wanted to take his son out for some "fresh air," attorneys say

Douglas Kennedy is the son of the late U.S. Sen. Robert F. Kennedy

(CNN) —  

The nurses involved in a maternity ward scuffle with Douglas Kennedy should be investigated and disciplined, Kennedy’s lawyers say.

Kennedy was arraigned last week on harassment and child endangerment charges, attorneys for both sides have said.

Kennedy – a Fox News contributor – was trying to take his newborn son for a walk “to get fresh air” outside Northern Westchester Hospital in Mount Kisco on January 7 when two nurses intervened to prevent him from leaving, they said.

Kennedy, who was accompanied by a hospital doctor, allegedly twisted the arm of one nurse to move her away from a door and kicked another after she approached him, according to Elliot Taub, the attorney for both nurses.

The doctor who accompanied Kennedy, Timothy Haydock, who is a longtime family friend, said the nurses had initially agreed to let Kennedy take the baby outside.

“The nurses were the only aggressors,” Haydock said in a statement delivered by Kennedy’s attorney.

But Taub said neither nurse recognized Kennedy as the child’s father and intended to protect the baby, who apparently had not been discharged. They were trying to enforce hospital rules, Taub said.

Kennedy denied those allegations, saying “the nurse had no right to grab our child out of his father’s arms.”

His attorney, Robert Gottlieb, said his client was “calm and considerate” and only became aggressive when the two nurses tried to take the baby.

Gottlieb said one nurse said to Kennedy, ” ‘Absolutely not,’ and got very aggressive.”

“Dr. Haydock told the nurses he was going to go with (Kennedy),” according to Gottlieb, who said the baby was wrapped in a blanket and had a cap on his head. “He wasn’t kidnapping him, obviously.”

Gottlieb said one of the nurses then lunged for the baby.

He said Kennedy then pushed the nurse with his knee, prompting the woman to fall backwards onto the hospital floor.

Mount Kisco police not were immediately available for comment.

The late Robert F. Kennedy was the younger brother of slain President John F. Kennedy and had served as U.S. attorney general and U.S. senator. He was assassinated in 1968 while campaigning for the Democratic presidential nomination.