This is ridiculous: M. Evan Corcoran, a lawyer who accompanied former President Donald J. Trump to court this week for his arraignment on charges of trying to overturn the 2020 election, has given crucial evidence in Mr. Trump’s other federal case — the one accusing him of illegally hoarding classified documents. Another lawyer close to Mr. Trump, Boris Epshteyn, sat for an interview with prosecutors this spring and could be one of the former president’s co-conspirators in the election tampering case. And Mr. Epshteyn’s lawyer, Todd Blanche, is defending Mr. Trump against both the documents and election case indictments. The legal team that Mr. Trump has assembled to represent him in the twin prosecutions by the special counsel, Jack Smith, is marked by a tangled web of potential conflicts and overlapping interests — so much so that Mr. Smith’s office has started asking questions. While it is not uncommon for lawyers in complex matters — like large mob cases or financial inquiries — to wear many hats or to play competing roles, the Gordian knot of intertwined imperatives in the Trump investigations is particularly intricate and insular. Some of the lawyers involved in the cases are representing both charged defendants and uncharged witnesses. At least one could eventually become a defendant, and another could end up as a witness in one case and Mr. Trump’s defender in a different one. All of that sits atop another thorny fact: Many of the lawyers are being paid by Save America PAC, Mr. Trump’s political action…