A series of blockbuster hearings from the Jan. 6 committee has put growing pressure on Attorney General Merrick B. Garland to bring criminal charges against former President Donald J. Trump over the efforts to overturn the 2020 election. Before today’s committee hearing, we speak with Andrew D. Goldstein, one of the prosecutors who led the last major investigation into Mr. Trump, about why winning a case against the former president is such a challenge. Guest: Andrew Goldstein, a federal prosecutor who was part of the Mueller inquiry into Mr. Trump.