Rand Paul's neighbor pleads not guilty to assault of senator

Nov. 9 (UPI) -- Rand Paul's neighbor pleaded not guilty to misdemeanor assault charges in an alleged attack on the Kentucky senator.

Rene Boucher, a 59-year-old retired doctor, pleaded not guilty to fourth-degree assault charges after he allegedly tackled Paul, his next-door neighbor, outside his home in Bowling Greene and left him with at least six broken ribs.

An attorney for Boucher issued a statement to ABC News saying the incident with the Republican senator was brought on by a "trivial" dispute and unrelated to politics.

Warren County Attorney Amy Milliken said Boucher faces a possible 12-month sentence and $500 fine for fourth-degree assault, but state police and the FBI were continuing to investigate the case.

Matthew J. Baker, Boucher's attorney, said the possibility of federal charges is "a concern."

"I hope that doesn't happen," he added.

Paul provided an update on his medical status Wednesday, writing on Twitter that six of his ribs were broken and X-rays showed fluids had begun to build up between his chest and lungs.