March 29, 2007 - Referred to the Committee on Homeland Security and Governmental Affairs for not to exceed 20 days pursuant to the order of January 9, 2007. April 11, 2007 - Placed on Senate Executive Calendar. Calendar No. 75. Subject to nominee's commitment to respond to requests to appear and testify before any duly constituted committee of the Senate. April 12, 2007 - Confirmed by the Senate by Voice Vote.