U.S. Constitution, Article I — The Legislative Branch, Section 3, Clause 6
The Senate shall have the sole Power to try all Impeachments. When sitting for that Purpose, they shall be on Oath or Affirmation. When the President of the United States is tried, the Chief Justice shall preside: And no Person shall be convicted without the Concurrence of two thirds of the Members present.
Notes
Establishes the Senate as the only body with power to try impeachments, requires Senators to be on oath or affirmation when sitting for that purpose, has the Chief Justice preside when the President is tried, and bars conviction without the agreement of two thirds of the members present.
Use as reference
Lexinter.net | U.S. Const. art. I, § 3, cl. 6 | https://laws.lexinter.net/constitution/us/article-1/section-3/clause-6