Special Counsel Jack Smith has a tough road ahead of him in securing a conviction in Donald Trump’s criminal case in D.C. for allegedly interfering with the 2020 election, a former prosecutor said Tuesday night. Ex-federal prosecutor Shan Wu wrote for The Daily Beast that Smith, who is also facing difficulties related to Trump’s criminal document retention case in Florida, has “a tougher task than Greek hero Hercules” after the Supreme Court’s presidential immunity ruling. Smith recently filed a superseding indictment in the case, cutting the charges down as much as possible so that they have …