N.D. Cent. Code § 44-09-13: Impeachment - Objections overruled - Further proceedings

If the accused, upon the overruling of the objections as provided in section 44-09-12, pleads guilty to any or all of the charges or specifications, the senate must render judgment of conviction against the accused. If the accused pleads not guilty or refuses to plead, the senate, at such time as it may appoint, must proceed to try the impeachment.