MindBender: Vote to amend motion that itself requires a two-thirds vote (Answer)

All references are to  RONR

Question: If the underlying motion requires a two-thirds vote, does a motion to amend the underlying motion also require a two-thirds vote or is a majority vote on the amendment sufficient?

Answer: Regardless of the vote required on the adoption of a motion, a motion to amend only requires a majority vote. This is true, for example, on proposed amendments to bylaws. Even through the adoption of the amendment to the bylaws requires a two-thirds vote, a motion to amend it takes a majority vote.