BOWLING GREEN, Ky. (WHAS11) -- There are still questions as to whether Rene Boucher will face more serious state charges or whether the feds will step in.

The anesthesiologist walked across the courtroom in his blue suit and tie to stand before Judge Brent Potter on Nov. 9.

Boucher stood silently, for the most part, letting his attorney make a not guilty plea as the judge announced the charge of fourth-degree assault.

Senator Rand Paul tweeted that he has six broken ribs and water near his lungs. Some have questioned whether that will bring a more severe assault charge.

RELATED: Attorney: Incident involving Ky senator not politically motivated

Boucher quietly acknowledged he understood the seriousness of not violating his bond and said, "thank you, sir" when the judge wrapped the short hearing and wished everyone a good day.

We caught up with Attorney Matthew Baker who insists the incident between his client and Senator Paul was not politically motivated.

RELATED: Police: Senator Rand Paul assaulted at his home in Kentucky

“It has nothing to do with politics... nothing. It has zero to do with Democrat or Republican, liberal or conservative, anything along those lines. It has to do with a disagreement between two neighbors…,” Matthew Baker, the attorney for Boucher, said.

What exactly that disagreement may have been, has not been confirmed by authorities although several neighbors have been quoted as citing a landscaping dispute.

Doug Stafford, Senior Advisor to Sen. Paul, released the following statement:

“Last week Senator Paul was vigorously assaulted by someone in his neighborhood. This is a serious criminal matter involving serious injury, and is being handled by local and federal authorities. As to reports of a longstanding dispute with the attacker, the Pauls have had no conversations with him in many years. The first "conversation" with the attacker came after Sen. Paul's ribs were broken. This was not a “fight”, it was a blindside, violent attack by a disturbed person. Anyone claiming otherwise is simply uninformed or seeking media attention."

EDITOR'S NOTE: The judge misstated Boucher's charges. He is not facing a domestic violence charge. He is facing an assault charge.