Trump answers question about possible Mueller interview by attacking Hillary Clinton

President Donald Trump has responded to questions about a possible interview with Special Counsel Robert Mueller by attacking his former campaign rival, Hillary Clinton and seemingly backing away from a pledge last year to speak under oath if asked.Mr Mueller is said to have informed Mr Trump's lawyers that he is likely to seek to interview the President as part of his federal probe into Russian election meddling and the Trump campaign's possible ties to Russia.No formal request has been sent, a