Two former political allies of Republican New Jersey Gov. Chris Christie entered not guilty pleas Monday after they were charged for their alleged involvement in politically motivated lane closures of the George Washington Bridge in 2013. 

Christie's former deputy chief of staff, Bridget Kelly, and his former top appointee at the Port Authority of New York and New Jersey, Bill Baroni, entered the pleas through their attorneys in the nine-count indictment unsealed Friday after a yearlong investigation. 

Kelly said Friday she is innocent; a defense lawyer also said Baroni is innocent. Baroni will make his first public comments on the case after the hearing. 

Bail for both was set at $150,000 and U.S. District Court Judge Susan Wigenton set a tentative trial date of July 7. 

David Wildstein, who went to high school with Christie and later became a top official in the Port Authority, pleaded guilty Friday to two criminal counts. He admitted that he helped plot lane closures in Fort Lee on an approach to the world's busiest bridge as political payback against that community's Democratic mayor for failing to support Christie's re-election campaign. 

"If David Wildstein was willing to repeatedly lie to settle a petty political grudge, nobody should be surprised at his eagerness to concoct any story that he thinks will help him stay out of federal prison," said Baroni's lawyer Michael Baldassarre. "We're confident that everyone will see this desperate ploy for exactly what this is." 

Christie has not been implicated in the criminal case.