Family members who lost loved ones on 9/11 have started an online petition calling for New York City Mayor Zohran Mamdani not to attend the 25th 9/11 remembrance ceremony.

Giovanni Galante, a 9/11 widower, started the petition with a woman who lost her husband on 9/11. Galante’s 29-year-old wife, Grace Catherine Galante, worked on the 105th floor of the north tower.

“We felt that having Mamdani there would show a disrespect to our family members because of the people he supports,” Galante said.

Editor’s note: An earlier version of this story incorrectly stated that thousands of 9/11 families had signed the petition. The petition was signed by thousands, including some 9/11 families. This story has also been updated to include more of Dennis McKeon’s interview.