Sen. Mark Warner, D-Va., on Sunday said there are "enormous amounts of evidence" linking the Trump campaign to Russia — the same day House Intelligence Committee Chairman Adam Schiff, D-Calif., said there's "direct evidence" of collusion between the two.

The top Democrat on the Senate Intelligence Committee disputed on NBC's "Meet the Press" recent remarks by Sen. Richard Burr, R-N.C. claiming that the committee hasn't found "factual evidence" of collusion between Russia and the Trump campaign.

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Warner, referring to "the litany of what we know," said, "the ongoing negotiations about Trump Tower, well into the campaign, I believe the fact that Mr. Trump knew about the dump of the Wikileaks material, the fact that clearly the meeting at Trump Tower meeting which was not described appropriately, in terms of offering dirt," were all evidence.

"To me, that's all evidence," he said. "There’s no one that could factually say there’s not plenty of evidence of collaboration or communications between Trump Organization and Russians."

Warner, however, did note that he'd be withholding full judgment until the Senate Intelligence Committee finishes its investigation into the 2016 presidential campaign.

Meantime on Sunday, House Intel Chair Schiff said on CBS' "Face the Nation" that he believes "there is direct evidence in the emails from the Russians through their intermediary offering dirt on Hillary Clinton as part of what is described in writing as the Russian government effort to help elect Donald Trump."

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“They offer that dirt. There is an acceptance of that offer in writing from the president’s son, Don Jr., and there is overt acts and furtherance of that… That to me is direct evidence," Schiff added.

The Senate committee's investigation is separate from that of Special Counsel Robert Mueller, who is also probing Russian election interference, questions of collusion and possible obstruction of justice by the Trump campaign.

The Associated Press contributed to this report.