Not only is your analogy incorrect, your comments are wrong and inaccurate.
In 1960, the Kremlin made an offer to support the candidacy of JFK against Nixon, but the Kennedy campaign rebuffed it. Likewise, when the Al Gore campaign in 2000 received confidential materials relating to the George W. Bush campaign, it called the F.B.I.
Trump Jr. when informed of a secret Kremlin effort to use highly sensitive information, to manipulate an American election, signaled, “We’re in!”
If you have security clearance, or are a government official, or are a principal in a campaign, you are required to report any attempt to contact you. Whether that contact was successful and how long it lasted is irrelevant.
If no law had been broken why did the Trumps deny at least 20 times that such a meeting had ever taken place.