President Trump's lawyers are closely examining a 24-year-old investigation of former Agriculture Secretary Mike Espy as they negotiate the terms of the president's possible interview with Russia special counsel Robert Mueller's team and related requests for White House documents, three officials familiar with the matter said. Trump's legal team is in early talks with federal investigators about a possible interview with the president related to the wide-ranging investigation into Russia's election interference and possible collusion with Trump associates. The contentious 1994 independent counsel investigation of Espy, which featured a protracted battle over White House documents, was a legal test over how far presidential privilege could extend when potential crimes are at stake.