Wyo. Const. art. 3, § 17: Power of impeachment; proceedings.

The sole power of impeachment shall vest in the house of representatives; the concurrence of a majority of all the members being necessary to the exercise thereof. Impeachment shall be tried by the senate sitting for that purpose, and the senators shall be upon oath or affirmation to do justice according to law and evidence. When the governor is on trial, the chief justice of the supreme court shall preside. No person shall be convicted without a concurrence of two-thirds of the senators elected.