The two federal criminal cases against former President Donald J. Trump sputtered back to life this week after periods of delay and major legal setbacks.
With 10 weeks left until Election Day, prosecutors in the office of the special counsel, Jack Smith, filed an appeal on Monday of Judge Aileen M. Cannon’s ruling last month dismissing the indictment that accused Mr. Trump of mishandling classified documents after leaving office and obstructing the government’s repeated efforts to retrieve them.