The panel said its determination was preliminary and nonbinding, and because of that it declined to specify what rule Giuliani, who contested the election results as former President Donald Trump’s lawyer, had likely violated.The development comes after Giuliani defended his work on a lawsuit that sought to toss the 2020 election results in the state at a hearing before a committee of the D.C. Board on Professional Responsibility last week.The lawsuit was rejected by a judge, and a federal appeals court refused to allow the campaign to file a revised complaint.During the hearing before the D.C. panel, Fox told the panel that Giuliani, a former New York City mayor and U.S. attorney in Manhattan, “weaponized his law license to bring a frivolous action in an attempt to undermine the Constitution.”Leventhal, argued that his client shouldn’t face charges because the judge in the Pennsylvania case did not accept and never considered the sole version of the complaint that Giuliani signed.A New York appellate court suspended Giuliani’s law license last year, saying he made “demonstrably false and misleading” statements about the 2020 election while serving as Trump’s lawyer."