When the Senate is sitting as a Court of Impeachment, the Senators shall be on oath, or affirmation, impartially to try the party impeached, and no person shall be convicted without the concurrence of two-thirds of the Senators present.
Section 4
Okla. Const. art. VIII, § 4 — under Impeachment and Removal from Office.
Okla. Const. art. VIII, § 4
Section 4