Please point to the specific statute.
I have yet to see any specific law noted that he violated . . .
The one most-frequently cited with respect to the transcript of the phone call between Trump and the Ukrainian president that was released by the White House is
52 USC §30121: "It shall be unlawful for . . . a person to solicit, accept, or receive [a contribution or donation of money or other thing of value] from a foreign national."
However, no statutory violation is constitutionally required to support impeachment and removal from office.
The President, Vice President and all civil officers of the United States, shall be removed from office on impeachment for, and conviction of, treason, bribery, or other high crimes and misdemeanors.
— Article II, §4
Obviously, at the time the constitution was drafted, there were no federal statutes.
Treason was
explictly and very narrowly defined in the constitution itself. The term
bribery, as used in the impeachment clause, was the common law crime of bribery, although Congress subsequently has enacted explicit federal bribery statutes, e.g.,
18 USC §201.
High crimes and misdemeanors is also a common law term, one of the oldest (used in impeachments since the 14th Century), and might best be summarized as "abuse of power." It refers to a corrupt act that is inconsistent with an office-holder's responsibilities. It may or may not involve violation of a statute and every violation of a statute is not necessarily a high crime or misdemeanor. It's all but certain that the meaning of "high crimes and misdemeanors" will be a subject of debate in the House of Representatives over whether to impeach Trump and, should it do so, in the Senate over whether to remove him from office.
