Donald TrumpDonald John TrumpChelsea Clinton announces birth of third child Ukrainian officials and Giuliani are sharing back-channel campaign information: report Trump attacks 'the Squad' as 'racist group of troublemakers' MORE insisted Sunday that he has no connections to Russia or its leader amid scrutiny of the Republican presidential nominee following the leak of nearly 20,000 Democratic National Committee (DNC) emails.

Trump in an interview on ABC's "This Week" said he has never met Russian President Vladimir Putin and has no financial ties to Russia.

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"No, just so you understand, he said very nice things about me. But I have no relationship with him. ... I've never met him," Trump said. "He treats me with great respect. I have no relationship with Putin. I don't think I've ever met him. I never met him. I don't think I've ever met him."

Trump said he has never spoken to Putin on the phone or even been in the same room with the Russian leader. The extent of their relationship, he said, is Putin having said "very good things" about Trump.

"I didn't meet him. I haven't spent time with him. I didn't have dinner with him. I didn't go hiking with him. ...  I wouldn't know him from Adam, except I see his picture, and I would know what he looks like."

At a GOP primary debate last November, Trump said he knew Putin because they were both on an episode of CBS's "60 Minutes."

“I got to know him very well because we were both on '60 Minutes.' We were stablemates,” Trump said. “We did well that night.”

Democrats have suggested Russian state actors were behind the leak of the DNC officials' emails in order to help Trump's campaign.

While Trump said on Sunday that he's sold condos to Russians but has no financial investments or debts in the country.