Republican presidential nominee Donald Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE on Sunday slammed Hillary Clinton Hillary Diane Rodham ClintonButtigieg stands in as Pence for Harris's debate practice Senate GOP sees early Supreme Court vote as political booster shot Poll: 51 percent of voters want to abolish the electoral college MORE campaign chairman John Podesta.

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"This guy Podesta is a nasty guy," Trump said Sunday evening during a campaign rally in Florida, echoing an insult he hurled at the Democratic presidential nominee during last week's debate.

"You take a look at all of the harm and all of the things she's done, it's a mess."

U.S. intelligence agencies have suggested that the release of Podesta's emails may be part of a Russia-backed plot to influence with the presidential election. Several of the emails have contained embarrassing revelations about the Clinton campaign and its allies.

Trump during his rally said the electoral system is a "broken and corrupt system."