The County Council of Montgomery County may remove any member of the Commission appointed from Montgomery County. Removals may occur prior to the expiration of the term for which they were appointed. The County Executive of Prince George's County may remove at his pleasure any members from that county prior to the expiration of the term for which they were appointed, subject to the approval of the County Council of Prince George's County by a vote of a majority of the full Council. In each case, the cause of removal shall be stated in writing and a public hearing held on the removal. However, in Prince George's County the Commission member sought to be removed may waive in writing the public hearing held by the Council. Further, this provision does not apply to any Prince George's member of the Commission in office on June 1, 1975 for the member's current term of office. Any vacancy occurring in the membership of the Commission from Montgomery County for any cause shall be filled by the County Council for the unexpired term and any vacancy occurring in the membership of the Commission from Prince George's County shall be filled in the manner provided in this title for the making of appointments to the Commission. A person appointed to fill any vacancy for an unexpired term shall be a member of the same political party as was represented by the member who vacated the office.