The indictment says Mack, his brother Ralphael, and associate Joseph "JoJo" Giorgiani, were part of a scheme to collect $119,000 in bribes in exchange for Mack's help developing a parking garage on a piece of city owned property.
"Full-blown corruption, I said that once, I said it over and over, full-blown corruption until we stop the corruption in the city of Trenton, we ain't going to move forward," Councilman George Muschal said.
In a sting set up by the FBI, confidential witnesses recorded conversations. In some, Mack was referred to as 'Napoleon' and 'the little guy.'
The mayor has consistently proclaimed his innocence.
"We have not violated the public trust nor I have not violated any of my public duties and that's all I'll have to say on the matter," Mack said.
"Having City Hall raided, his home raided, it has stopped the city in its tracks and I think with the indictment we're not going to move at all," Councilman Zachary Chester said.
After passing a no-confidence vote following his own arrest, city council members are now calling for Mac to resign.
"When we are trying to ask people to straighten up, he's showing he's acting up; it's time to step down," Council President Phyllis Holly-Ward said.
"It's an embarrassment to the city, but I really feel for his family, his mother and his kids, but you know, there's one thing, got to do the right thing when you become the mayor," Andrew Bobbitt of the Recall Mack Campaign said.