During the latest episode of MSNBC’s All In With Chris Hayes, The Nation justice correspondent Elie Mystal explained why Donald Trump and his lawyers don’t understand their own argument for the ex-president’s immunity against prosecution. Hayes pointed to Mystal’s Thursday, January 18 tweet, in which he wrote, “To recap, everybody agrees that Trump’s lawyer fell into a trap last week, when he said that Trump could order Seal Team 6 to assassinate a political rival. So Trump’s response has been to demand the immunity to assassinate political rivals.” Mystal then emphasized, “And the thing Trump…