A deep dive into special counsel Jack Smith’s massive legal filing that exposed new evidence in Donald Trump’s election subversion case reveals the legal strategy behind the prosecution of the former president and the possibility of a key government witness – former Vice President Mike Pence. MSNBC legal correspondent Lisa Rubin noted in an analysis published Friday that while the exhibits to Smith’s immunity brief remain under wraps, “snippets of witness statements give clues about his litigation strategy if the federal election interference case survives.” Alternating between playing it safe…