Mensch was intensely anti-Trump.
She believed she was supporting Hilary against Trump.
This was a day-before-the-election smear, intended to make Trump look bad - under FBI investigation, etc.
Read again.
She in no way supports Trump, and in fact, libels him daily.
She worked for John Podesta on Hillary’s campaign and was obviously promised something if HRC became President that she is extremely bitter over losing.