Donald Trump’s lawyer, Todd Blanche, scored major legal points when he caught Michael Cohen off guard during the witness’ testimony, but it won’t move the needle much, a legal expert said Sunday. Lawfare’s Roger Parloff, who recently reported that Judge Cannon had created a “secret docket” in the process of overseeing the Trump case involving allegedly stashed classified documents, addressed what he called “Todd Blanche’s Perry Mason moment” during his cross-examination of Cohen. The question, the expert said, is whether it “torpedoed the People’s case against Trump.” Want more breaking politi…