More than 1,500 attorneys across the US have signed a petition calling for bar associations to condemn and investigate President Donald Trump’s campaign lawyers.

Since Trump lost his bid at reelection, his legal team has filed an abundance of lawsuits challenging the validity of the November presidential election. However, they have not only been unsuccessful but, according to the petition, have also constituted a “historic abuse of the judicial process. Despite the Justice Department finding no evidence of widespread election fraud, Trump’s legal team continues to push such claims.

The letter states:

[Rudy] Giuliani’s aim is obvious: to fuel Mr. Trump’s campaign to delegitimize the outcome of the election. Attorneys take an oath to support the Constitution. Lawyers who lie to advance the partisan interest of a politician or any client dishonor the constitutional system they’ve sworn to uphold, the legal profession and themselves. The dishonor is especially clear in the case of Trump lawyer Joseph DiGenova’s outrageous November 30 statement on Newsmax that former director of the Cybersecurity and Infrastructure Security Agency, Christopher Krebs, should be “taken out at dawn and shot.”

The letter further that the lawyers on Trump’s legal team should be subject to sanctions under Rules 3.1, 4.1(a) and 8.4(c) of the American Bar Association Model Rules of Professional Conduct. Additionally, the conduct of these lawyers allegedly “demeans the legal profession” and “grossly deviates from the bar’s deep commitment to democratic institutions and the fact-based processes that maintain our democracy’s vitality.”