“It is always the best policy to tell the truth, unless, of course, you are an exceptionally good liar.”

Hillary is a prolific liar, not an exceptionally good liar (like Bill).  When the liar starts believing her own lies, the delusion becomes only too apparent to everyone else.  Putting on an act is one thing, believing it is another.

And repeating the lie over and over will eventually yield some converts.  i.e. man-made climate change, Trump-Russia collusion, WTC building 7, false flags of all sorts, fake news (propaganda).  The professional liars (journalists and politicians) have started to lose their monopolistic hold on 'news' and the traditional facade of equanimity and professionalism has fallen to reveal the petty and bigoted opinions now being treated as 'news.'  Good liars are becoming harder and harder to find.  ;-)