A federal appeals court panel expressed skepticism on Monday over the legitimacy of President Donald Trump’s administration appointing top federal prosecutors for extended periods of time without U.S. Senate approval. Questions about the practice arose before the 2nd U.S. Circuit Court of Appeals as it considered a judge’s decision that First Assistant U.S. Attorney John Sarcone was not lawfully serving as the top prosecutor in the northern district of New York , a ruling that found Sarcone's actions are voidable. Circuit Judge Maria Araújo Kahn said she was concerned that a president could “basically end running a system that our Founding Fathers put in place for a checks-and-balance system.” She said it didn’t matter who the president was or which political party was in power. “That individual can bypass Senate approval of any U.S. attorney by just continuously appointing a first assistant for the purpose of making them active U.S. attorney. When would it end?” she asked. U.S. District Judge Lorna G.…