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's campaign manager says the GOP presidential nominee is willing to do another debate against 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.

"The debates are a very unique opportunity for all of America to see these candidates side by side. And I wish there were more debates," Kellyanne Conway said in an interview with John Catsimatidis on Sunday.

"I think Donald Trump would challenge Hillary Clinton to another debate for a very simple reason: Unless you are a money donor, you are not going to have much access to Hillary Clinton out on the stump now," she continued.

Trump and Clinton appeared in their third and final scheduled debate Oct. 19 at the University of Nevada, Las Vegas. The Democratic nominee later mocked as "comedy" Trump's claim that he won the last debate.

In her Sunday interview, Conway also criticized Clinton for a negative campaign against Trump, stating that most of the anti-Trump ads have no policy substance or an uplifting message.

"We noticed that Hilary Clinton spent $66 million on ads in September alone. She's doubled the amount of money spent on ads from August to September. Most of it is the politics of personal destruction against Donald Trump. Very little, if any of it, is an aspirational uplifting message that people normally associate with the preferred presidential candidate," she argued.

Conway said that she believes the polls will tighten closer to Election Day, Nov. 8, and that the Republican nominee can rally more support by focusing on policy.

"With Hillary Clinton, people already have a reason to vote against her ... they are just looking for a reason to vote for Donald Trump, and that's what he needs to provide by giving policy prescriptions at these rallies, and these forms and also ... thought forms like the debate itself this past Wednesday," Conway said.

"So, to give people a free opportunity to see them side by side and have them really mix it up on the issues to me is the purest form of democracy," she said.