Republican presidential candidate Donald Trump's campaign manager, who was charged in Florida last month with battery on a reporter, will not be prosecuted, Politico reported on Wednesday, citing sources with knowledge of the situation.

Corey Lewandowski was charged with intentionally grabbing and bruising the arm of Michelle Fields, then a reporter for the conservative news outlet Breitbart, when she tried to question Trump at a campaign event on March 8.

Palm Beach County State Attorney David Aronberg is scheduled to announce the decision not to press charges against Lewandowski on Thursday afternoon, Politico said.