CNN —Walt Nauta, an aide to former President Donald Trump, pleaded not guilty Thursday to multiple counts related to the mishandling of classified documents at Mar-a-Lago, including several obstruction and concealment-related charges. The brief procedural hearing moves Nauta and Trump toward trial together in the historic case alleging mishandling of national security records and obstruction of justice. Trump is accused of illegally keeping classified documents from his presidency at his Mar-a-Lago resort and Nauta is accused of helping him to hide those documents from the federal government. Nauta served as a military valet in the White House under then-President Trump and traveled to Florida with Trump when he left office, eventually taking on the role of his personal aide. But the unprecedented nature of Trump and Nauta’s case, as Trump runs again for the White House, makes timing even more crucial with primary voting for the 2024 GOP nomination beginning early next year.