This bill establishes the National Commission on the Cybersecurity of United States Election Systems. The purposes of the commission are to: identify and document mitigation and response activities to or in the prevention of cybersecurity vulnerabilities in U.S. election systems in 2016; document and describe any harm or attempted harm to U.S. election systems in 2016; review foreign cyber interference in elections in other countries to determine additional cybersecurity threats, interference methods, and successful defense mechanisms; make a full and complete accounting of emerging threats and unmitigated vulnerabilities to U.S. election systems; and report recommendations for action at the federal, state, and local levels. The commission is given the authority to hold hearings and issue subpoenas to fulfill its purposes.