Trump was quoting Mike Pence, not Marianne Williamson.
On October 26, 2016, Mike Pence spoke at a rally in Salt Lake City. THIS is where the phrase Truth is a force of nature originated. Pence was talking about Hillary Clinton.
The entire speech is worth watching, but the relevant part begins at 05:34
[PENCE] MANY OF THE NATIONAL MEDIA GET UP EVERY DAY AND THEY DO HALF OF HILLARY CLINTON'S WORK FOR HER, BUT THE AMAZING THING IS, IS DONALD TRUMP IS STILL WINNING HEARTS AND MINDS EVERY DAY, AND HE'S GOING TO WIN ALL THE WAY TO THE OVAL OFFICE. I MEAN, IT REALLY IS INCREDIBLE.
I MEAN, THE LATEST THING YOU GET THIS WEEKEND IS YOU GET THE NATIONAL MEDIA AND HILLARY CLINTON AND THEIR CAMPAIGN ARE ALL TRYING TO PROJECT THIS THING THAT THIS CAMPAIGN IS ALL ROLLED UP. ARE YOU READING THAT KIND OF STUFF? THIS AIR OF INEVITABILITY, RIGHT?
WELL, LET ME TELL YOU, UTAH: DON'T BUY IT. DON'T BE FOOLED. THIS RACE IS ON. WE ARE ALL KNOTTED UP IN UTAH, IT'S ALL KNOTTED UP IN AMERICA, AND WE ARE GOING TO DRIVE ALL THE WAY TO THE FINISH.
YOU KNOW, SHE MAY HAVE THE MEDIA, THE MONEY, AND THE SPECIAL INTERESTS ON HER SIDE, BUT DONALD TRUMP AND I HAVE GOT A–
[AUDIENCE] LOCK HER UP! LOCK HER UP! LOCK HER UP! LOCK HER UP! LOCK HER UP! LOCK HER UP! LOCK HER UP! LOCK HER UP!
[PENCE] SHE MAY HAVE THE MEDIA, THE MONEY, AND THE SPECIAL INTERESTS ON HER SIDE, BUT I'LL TELL YOU WHAT, FROM WHERE I STAND, WE HAVE A BASKET OF AMERICANS THAT ARE SAYING ENOUGH IS ENOUGH. AND YOU KNOW THEY'RE ESPECIALLY SAYING ENOUGH IS ENOUGH ON THAT FAST AND LOOSE ETHICS THAT ALWAYS ACCOMPANIES THE CLINTONS. YOU KNOW WHAT I'M TALKING ABOUT?
I MEAN, IT REALLY IS AMAZING. STAY WITH ME ON THIS. WHILE SHE WAS SECRETARY OF STATE IN CHARGE OF ALL OUR FOREIGN POLICY, SHE HAD A PRIVATE FAMILY FOUNDATION THAT TOOK MILLIONS OF DOLLARS FROM FOREIGN GOVERNMENTS. YOU WITH ME?
AND THEN IN BETWEEN THOSE TWO THINGS, SHE HAD A PRIVATE SERVER TO KEEP THOSE E-MAILS OF WHAT WAS GOING ON THERE, APPARENTLY, OUT OF THE PUBLIC REACH. AND THEN WHEN IT WAS FOUND OUT SHE HAD A PRIVATE SERVER, SHE USED HIGH TECHNOLOGY AND HAMMERS TO TRY AND GET RID OF THOSE E-MAILS.
BUT YOU KNOW, TRUTH IS A FORCE OF NATURE, AND THE TRUTH'S BEEN COMING OUT.