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Charles Krauthammer said the scandal surrounding Donald Trump Jr.'s meeting with a Russian lawyer who promised dirt on Hillary Clinton was "the first empirical evidence" of the campaign's collusion with Russia.

"The damage done by this story is enormous," Krauthammer said, adding that he thinks more similar stories exist.

During campaign season a year ago, publicist Rob Goldstone told Donald Jr. that the Russian government may have damaging information on his father's opponent. The president's son responded, "If it’s what you say I love it."

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"'I love it' are deadly words," Krauthammer said. "Attempted collusion is still collusion."

"Now you see the evidence loud and clear," Krauthammer stated.

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