Hillary Clinton's campaign struck back against Donald Trump's assertion the White House race is shaping up as "a rigged election.''
Clinton campaign manager Robby Mook said participation in the electoral system, and particularly voting, is something to be encouraged, and not, in his words, "dismissed or undermined because a candidate is afraid he's going to lose.''
Mook pointed to what he said will be a record turnout on Election Day.
And he added voters will turn out in unprecedented numbers because they can see through Trump's "shameful attempts to undermine an election weeks before it happens.''
Trump posted tweets on Saturday morning alleging "false and unsubstantiated charges'' and "outright lies'' are being pushed by the media as part of a scheme to help elect Clinton president.
Meantime, Trump is accusing rival Clinton of being on some kind of drug during the last debate, that both candidates should be tested for substances ahead of the next one.
The Republican presidential nominee offered no evidence to support the bizarre claim, which he appeared to base on his belief that Clinton was energetic at the start of their second debate and downbeat at its conclusion.
He said, "I think she's actually getting pumped up'' while she's off the trail.
He also mocked Clinton for what he suggested was wasting time by preparing for their debates.
The GOP nominee made the extraordinary assertion when speaking at an outdoor rally on Saturday in Portsmouth, New Hampshire.
CJAD will air the third US presidential debate on Wednesday beginning at 9 p.m.