The defense lawyers for Gregory Craig, a former Obama White House counsel and Big Law partner in Washington, are pushing back against prosecutors and demanding the government provide more details about allegations that he lied about his advocacy for the government of Ukraine.

Craig, a former Skadden, Arps, Slate, Meagher & Flom partner in Washington, has pleaded not guilty to charges he misled the Justice Department to avoid registering as a foreign agent in connection with his past work for Ukraine. He is represented by a team from Zuckerman Spaeder. Craig retired from Skadden last year as the criminal investigation was unfolding.