The neighbor of Sen. Rand Paul, who attacked the Kentucky Republican on Saturday while he was doing yard work, pleaded not guilty on Thursday to misdemeanor assault.

Rene Boucher, 59, who shares a property line with Paul, appeared in court in Bowling Green, Ky., on Thursday. If convicted of the assault charge, Boucher faces up to a year in jail.

Related: Rand Paul's neighbors media 'landscaping dispute' reports

The 59-year-old retired anesthesiologist has a pre-trial hearing Nov. 30, according to the Associated Press.

Boucher reportedly tackled Paul to the ground Friday while the senator was doing yard work. Paul suffered six broken ribs and fluid build-up around his lungs.

“I appreciate all of the support from everyone. A medical update: final report indicates six broken ribs & new X-Ray shows a pleural effusion,” Paul tweeted Wednesday.

Paul and Boucher have reportedly been in an ongoing dispute over leaf and grass clippings, and Boucher’s lawyer said the altercation had nothing to do with politics.

But social media posting indicate Boucher was fiercely opposed to President Trump and the GOP. Neighbors told the Washington Examiner on Wednesday that Paul, who they described as a “first class” neighbor, keeps his property neat, and they dismissed claims that the attack stemmed from a landscaping dispute.