Wis. Stat. § 193.435: Actions of the board.

(1) Generally. Unless this chapter or the articles or bylaws provide otherwise and except as provided in sub. (2), the board shall take action by the affirmative vote of the greater of the following:

(a) A majority of directors present at a meeting at the time the action is taken.

(b) A majority of the minimum number of directors that would constitute a quorum for the transaction of business at the meeting.

(2) Exception for objecting director. Any director who objects at the beginning of a board meeting to the transaction of business because the meeting is not lawfully called or convened and who fails to participate in the meeting after the objection may not be considered as present at the meeting for purposes of sub. (1).