New York City's largest police union is encouraging its members to sign a letter asking Mayor Bill de Blasio and City Council Speaker Melissa Mark-Viverito to stay away from police funerals if they are killed while on active duty. The union feels they've "thrown under the bus" by de Blasio when he didn't show more support for the NYPD after the verdict was announced for the Eric Garner case.

The Patrolmen's Benevolent Association (PBA) is asking their members to sign this letter, called "Don't Insult My Sacrifice," which reads: "I, _____________________, as a New York City police officer, request that Mayor Bill de Blasio and City Council Speaker Melissa Mark-Viverito refrain from attending my funeral services in the event that I am killed in the line of duty. Due to Mayor de Blasio and Speaker Mark-Viverito's consistent refusal to show police officers the support and respect they deserve, I believe that their attendance at the funeral of a fallen New York City police officer is an insult to that officer's memory and sacrifice."

According to the New York Post, the union feels betrayed by Mayor Bill de Blasio when he didn't show more support for the NYPD after a grand jury decided not to indict the officer involved in the death of Staten Islander Eric Garner.

Instead, de Blasio shared that he gave his own son Dante - whose mother is black - a warning about the role of police in black people's lives, and told him to be careful around police officers.

The next day, PBA president Patrick Lynch said that police officers felt they had been "thrown under the bus" by the mayor. De Blasio, Lynch said, "spoke about that we have to teach our children-about their interaction with the police and that they should be afraid of New York City police officers. That's not true. We have to teach our children, our sons and our daughters, no matter who they look like, to respect New York City police officers. Teach them to comply with police officers, even if they feel it's unjust."

The New York Post reports de Blasio and the council speaker are calling the letter "deeply disappointing."

"Incendiary rhetoric like this serves only to divide the city, and New Yorkers reject these tactics," they said in a joint statement.