Texas Business Organizations Code - BUS ORG § 21.359. Voting in Election of Directors

(1) the vote of the holders of a specified portion, but not less than the majority, of the shares entitled to vote in the election of directors;

(2) the vote of the holders of a specified portion, but not less than the majority, of the shares entitled to vote in the election of directors and represented in person or by proxy at a meeting of shareholders at which a quorum is present;  or

(3) the vote of the holders of a specified portion, but not less than the majority, of the votes cast by the holders of shares entitled to vote in the election of directors at a meeting of shareholders at which a quorum is present.