When the Manhattan grand jury weighing whether to hand up an indictment of President Trump convenes again on Thursday, it will do so while the doubts swirling around the case grow ever louder — and the office of the district attorney itself appears to be riven by uncertainty. 

That is a cautionary development, in the view of a criminal law professor at New York Law School, Anna Cominsky. She tells the Sun that “a prosecutor should have a good faith basis that they can prove the case ‘beyond a reasonable doubt’ at trial.” She adds that the “reason why prosecutors are so powerful is because we have given them an unbelievable amount of discretion.”