Donald Trump’s campaign manager Corey Lewandowski won’t be prosecuted on misdemeanor battery charges, a Florida prosecutor decided on Thursday.

“As state attorney I have made the decision that this office will not be filing charges against Corey Lewandowski for battery,” Palm Beach County Florida state attorney David Aronberg announced at a press conference.

Lewandowski was charged with simple battery late last month in connection with a March 8 incident with reporter Michelle Fields from the conservative political site Breitbart News.

A surveillance video released by Jupiter police appeared to show Lewandowski grabbing Fields by the arm and pulling her away from Trump as she attempted to ask the GOP frontrunner a question after a press conference. Fields tweeted a photo of bruises she said he left on her arm.

Fields and at least six other colleagues resigned from Breitbart after the incident.

Palm Beach County prosecutors said in court documents that there wasn’t enough evidence to convict Lewandowski of attacking Fields. “Although there was probable cause to make an arrest, the evidence cannot prove all legally required elements of the crime alleged and is insufficient to support a criminal prosecution,” the documents read.

Fields tweeted on Wednesday that she agreed to a deal in which Lewandowski would issue her an apology.

“For those asking, office of prosecutor asked 2 weeks ago if I’d be OK with an apology from Corey. I said ya but haven’t heard back about it,” she wrote.

Lewandowski has vehemently and repeatedly denied the accusations over the last month, even calling Fields “delusional” in a March 10 tweet.

The Trump campaign challenged initial reports last month that Lewandowski had been arrested.

“Mr. Lewandowski was issued a Notice to Appear and was given a court date,” Trump’s campaign said in a statement. “He was not arrested. Mr. Lewandowski is absolutely innocent of this charge. He will enter a plea of not guilty and looks forward to his day in court. He is completely confident that he will be exonerated.”