Indicted by a federal grand jury for lying to the FBI, GOP Congressman Jeff Fortenberry was accused today of violating his oath of office in a “disturbing way.”

That comment from Assistant US Attorney Mack Jenkins during Fortenberry’s initial court appearance—Fortenberry appearing in US District Court in Los Angeles by Zoom.

The Congressman’s attorney, John Littrell, told the court that the charges against Fortenberry have tarnished the nine-term representative’s reputation and Fortenberry will be taking the case to trial, no plea deal will be accepted.

According to the government, Fortenberry’s wrongdoing occurred during an investigation into illegal contributions made to the congressman’s 2016 re-election campaign; contributions that involve Gilbert Chagoury, a foreign national prohibited by federal law from contributing to federal elections, and a Chagoury associate Toufic Joseph Baaklini.

The prosecution announced in court today that Chagoury and Baaklini are two of the key witnesses against Fortenberry. Five other witnesses are said to be individuals who currently or previously worked for Fortenberry.

The indictment alleges that, “Fortenberry falsely told investigators that he was not aware of Baaklini ever being involved in illegal campaign contributions, that the individuals who made contributions at the 2016 fundraiser were all publicly disclosed, and that he was not aware of any contributions to his campaign from a foreign national.”

The New York Times reports that Chagoury is a Lebanese Nigerian billionaire who was accused of making illegal campaign contributions “to American politicians in exchange for access to them.”

If convicted on all counts Fortenberry is facing a maximum 15 years in federal prison.