Trump claimed that polls showing him losing are “heavily weighted with Democrats” to give inaccurate results, according to a transcript by CBS News reporter Sopan Deb.
He cited an ABC News poll released Sunday which showed Hillary Clinton with a 12-point lead over him as an example of a “heavily weighted” and “totally phony” poll.
"It's part of the rigged system that I've been talking about since I entered the race," Trump claimed, citing his performance in the Republican primary race as evidence that recent polls were underestimating his support.
He described the slew of polls showing Clinton in the lead as "dark polls" put out by the "phony" media in order to discourage voters.
"They try and suppress the vote. This way, people don't go out and vote," he said. "But we're winning this race. I really believe we're winning."
Even Trump's campaign manager, Kellyanne Conway, acknowledged that the GOP nominee was "behind" in the polls in a Sunday morning appearance on NBC's "Meet the Press."
Watch Trump's remarks below: