City employees in Newark are facing uncertainty Tuesday due to the city's budget deficit.Newark Mayor Cory Booker said layoffs will be needed to make up for two decades of mismanagement and abuse. He estimates that the layoffs would save the city about $12.5 million.Workers at the Division of Sanitation said they received a letter warning of possible layoffs, but it did not say who would be facing layoffs. The letter said employees would receive at least 45 days notice and that the layoffs would take effect on November 16.A shop steward at the Division of Sanitation said the mayor visited two months ago and assured workers there they would not be laid off. The shop steward said he is still worried though, since there are many hard workers at the department and there are still a lot of questions about the pending layoffs.