21st Century Voting Act This bill establishes the Commission on Voting to report to Congress proposed legislation that would make specified changes to voting policy, including (1) making Election Day a national holiday, (2) making voter registration automatic and permanent, and (3) restoring the right to vote to persons released from prison. This proposed legislation must be introduced as a bill by the Speaker of the House of Representatives and receive a vote. If the bill passes the House, it must be considered and voted upon by the Senate.