NOTE: The USA already has in effect a mutual legal assistance program signed with the Ukraine that would prosecute Joe Biden, Hunter Biden, the DNC, Hiliary Clinton, and all others involving criminal matters.
Thus, President Trump did not violate any laws. He is cooperating with the Ukraine in cleaning up corruption both in the USA and in the Ukraine.
Also note that President William Clinton signed this treaty in 1999.
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(first page only is displayed - please click link to read the entire docuмent)
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106TH CONGRESS
1st Session
SENATE
TREATY DOC. 106–16
TREATY WITH UKRAINE
ON MUTUAL LEGAL ASSISTANCE
IN CRIMINAL MATTERS
_____
MESSAGE
FROM
THE PRESIDENT OF THE UNITED STATES
TRANSMITTING
TREATY BETWEEN THE UNITED STATES OF AMERICA AND
UKRAINE ON MUTUAL LEGAL ASSISTANCE IN CRIMINAL MAT-
TERS WITH ANNEX, SIGNED AT KIEV ON JULY 22, 1998, AND
WITH AN EXCHANGE OF NOTES SIGNED ON SEPTEMBER 30,
1999, WHICH PROVIDES FOR ITS PROVISIONAL APPLICATION
NOVEMBER10, 1999.—Treaty was read the first time, and together with
the accompanying papers, referred to the Committee on Foreign Rela-
tions and ordered to be printed for the use of the Senate
U.S. GOVERNMENT PRINTING OFFICE
WASHINGTON : 1999
79-118