More than 20 WH employees quizzed by Mueller, lawyer says

Senate Judiciary Committee Chairman Chuck Grassley, R-Iowa, speaks with reporters following a vote, at the Capitol in Washington, Thursday, Jan. 25, 2018. The Senate Judiciary Committee is finishing its investigation into the meeting between Russians and President Donald Trump’s campaign in June 2016 — and Grassley wants to release transcripts from closed-door interviews with Trump’s son and others. Grassley says he wants to work out an agreement with Sen. Dianne Feinstein of California to release transcripts from interviews with Donald Trump Jr. and others who attended the campaign meeting in Trump Tower. (AP Photo/J. Scott Applewhite)

WASHINGTON — More than 20 White House employees have given interviews to the special counsel in his probe of possible obstruction of justice and Trump campaign ties to Russian election interference, according to a document released Thursday that underscores the breadth of the investigation.