Trump said our elections are rigged (when he thought he was losing). Here are three tweets in which he makes rigged elections a key feature of his campaign (and a preparation for why he lost, as he thought he would when he made these comments):
The election is absolutely being rigged by the dishonest and distorted media pushing Crooked Hillary - but also at many polling places - SAD
On that date, 11 days before the Comey disclosures caused the gap to collapse, leading to Trump's Electoral College victory, Clinton was up by 7.1 points, or 15%. It looked like a blowout, and Trump was preparing his excuses for losing.
Then, after the FBI intervention caused the Clinton lead to collapse, Trump went on to lose by 2.8 million public votes but through the slave era devis.e of he Electoral College, meant as a firewall against the majority, Trump was able to gain power.