u.s. senator lisa murkowski (r-ak), chairman of the u.s. senate energy and natural resources committee and chairman of the u.s. senate appropriations subcommittee on the interior, environment, and related agencies, delivered the keynote address, and several members of the nevada and california delegations, including sen. dianne feinstein (d-ca), sen. catherine cortez masto (d-nv), and rep mark amodei (nv-02), participated in the tahoe summit. 