Tex. Const. art. XV, § 6

Any Judge of the District Courts of the State who is incompetent to discharge the duties of his office, or who shall be guilty of partiality, or oppression, or other official misconduct, or whose habits and conduct are such as to render him unfit to hold such office, or who shall negligently fail to perform his duties as Judge; or who shall fail to execute in a reasonable measure the business in his courts, may be removed by the Supreme Court. The Supreme Court shall have original jurisdiction to hear and determine the causes aforesaid when presented in writing upon the oaths taken before some Judge of a court of record of not less than ten lawyers, practicing in the courts held by such Judge, and licensed to practice in the Supreme Court; said presentment to be founded either upon the knowledge of the persons making it or upon the written oaths as to the facts of creditable witnesses. The Supreme Court may issue all needful process and prescribe all needful rules to give effect to this section. Causes of this kind shall have precedence and be tried as soon as practicable.