A prominent legal expert recently accused former President Donald Trump’s lawyers of making circular and self-contradictory arguments all in the service of shielding Trump from accountability. During a Friday night segment on MSNBC’s All In with Chris Hayes, former US principal deputy solicitor general Neal Katyal — who helped argue cases on behalf of the Obama administration before the Supreme Court — laid out how none of Trump’s arguments against being prosecuted make “any sense” when analyzed in full context. “The common theme across all these cases… and indeed all of Trump’s behavior, bo…