His remarks on these lines during a news conference in Miami yesterday was considered by the top Democratic party leadership as seeking Russian intervention in the US election system and a national security issue.
The Clinton Campaign issued a statement condemning Trump.
Later in the night, several speakers, including the former Defense Secretary Leon Panetta, slammed the Republican presidential nominee for asking the Russians to find out the missing 33,000 emails of Clinton and released them.
"But you have 33,000 e-mails deleted, and the real problem is what was said in those e-mails from the Democratic National Committee. You take a look at what was said in those e-mails, it's disgraceful. It's disgraceful," Trump said.
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"They talk about religion, they talk about race, they talk about all sorts of things, including women, and what they said in those e-mails is a disgrace," he said.
"You have to be kidding," Trump said in response to another question.
The Republican presidential nominee reiterated that the Russian President Vladimir Putin is a better leader than his American counterpart Barack Obama.
Trump said he would not tell what he would be doing with Russia when he is the president.
"I'm not going to tell you what I'd do. Why would I tell you a thing like that? Wouldn't that be crazy, to tell you what I'd do? You react at the time," he said.