Let me describe some of Trump's pre-election activities: People from the Trump campaign enlisted the aid of Russian espionage agents to find or create dirt on Clinton and to otherwise manipulate the election.
Now consider the following laws pertaining to such activities in the United States:
18 U.S. Code § 371 - Conspiracy to commit offense or to defraud United States
If two or more persons conspire either to commit any offense against the United States, or to defraud the United States, or any agency thereof in any manner or for any purpose, and one or more of such persons do any act to effect the object of the conspiracy, each shall be fined under this title or imprisoned not more than five years, or both.
If, however, the offense, the commission of which is the object of the conspiracy, is a misdemeanor only, the punishment for such conspiracy shall not exceed the maximum punishment provided for such misdemeanor.
Source: https://www.law.cornell.edu/uscode/text/18/371
U.S. Constitution, Article III, Section 3:
Treason against the United States, shall consist only in levying war against them, or in adhering to their enemies, giving them aid and comfort. No person shall be convicted of treason unless on the testimony of two witnesses to the same overt act, or on confession in open court.
The Congress shall have power to declare the punishment of treason, but no attainder of treason shall work corruption of blood, or forfeiture except during the life of the person attainted.
Source: https://www.law.cornell.edu/constitution/articleiii
18 U.S. Code § 2381 - Treason
Whoever, owing allegiance to the United States, levies war against them or adheres to their enemies, giving them aid and comfort within the United States or elsewhere, is guilty of treason and shall suffer death, or shall be imprisoned not less than five years and fined under this title but not less than $10,000; and shall be incapable of holding any office under the United States.
Source: https://www.law.cornell.edu/uscode/text/18/2381
There are some that have had their focus on these questions for quite some time, as far back as 7 December 2017. See:
Donald Trump and Criminal Conspiracy Law
https://www.americanprogress.org/iss...onspiracy-law/
The article examines the activities of the Trump campaign under the RICO statute. I found that article engaging as it provides tons of food for thought on these matters.
And finally, this video in case you just don't feel like reading shit on the internet: