A neighbor of Senator Rand Paul of Kentucky intends to plead guilty to a federal felony charge after he tackled the senator in November in an assault set off by the placement of a pile of brush, the man’s lawyer said on Friday.

The neighbor, Rene A. Boucher, 58, of Bowling Green, Ky., was charged on Friday with assaulting a member of Congress resulting in personal injury, the United States attorney for the Southern District of Indiana, Josh J. Minkler, said in a news release.

Mr. Boucher has signed a plea agreement and will plead guilty, but no date has been set for his court appearance, his lawyer, Matthew J. Baker, said in a phone interview. Federal prosecutors will seek a prison sentence of up to 21 months, Mr. Baker said, adding that he would seek probation for his client. The charge carries a maximum penalty of 10 years in prison.

The episode happened on Nov. 3, 2017, when Mr. Paul was mowing his yard while wearing headphones, officials said.