On 07/27/2016, Donald Trump invited the Russian government to use computer technology (hacking) to access domestic email accounts, therefore giving 'aid and comfort' to a foreign government, with the intent to influence the national election of the United States President. The act of treason is defined in 18 U.S. Code § 2381:
"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."
June 25, 1948, ch. 645, 62 Stat. 807; Pub. L. 103–322, title XXXIII, § 330016...