**FILE** Sens. Carl Levin (left), Michigan Democrat and Chairman for the Senate Homeland Security and Governmental Affairs Permanent subcommittee on Investigations, and John McCain of Arizona, the subcommittee's ranking Republican, arrive on Capitol Hill in Washington on May 21, 2013, for the subcommittee's hearing to examine the methods employed by multinational corporations to shift profits offshore and how such activities are affected by the Internal Revenue Code. (Associated Press)
**FILE** Sens. Carl Levin (left), Michigan Democrat and Chairman for the Senate Homeland Security and Governmental Affairs Permanent subcommittee on Investigations, and John McCain of Arizona, the subcommittee's ranking Republican, arrive on Capitol Hill in Washington on May 21, 2013, for the subcommittee's hearing to examine the methods employed by multinational corporations to shift profits offshore and how such activities are affected by the Internal Revenue Code. (Associated Press)
Senate Armed Services Committee Chairman Carl Levin (left), Michigan Democrat, and Sen. Roger Wicker, Mississippi Republican, talk on Capitol Hill in Washington on April 17, 2013, before a hearing with Defense Secretary Chuck Hagel. A letter addressed to Wicker, believed to be poisoned with ricin or a similarly toxic substance, was intercepted at a mail facility outside the capital earlier in the week. Levin issued a statement saying an aide in his Saginaw, Mich., office had also received a suspicious-looking letter. (Associated Press)
Senate Armed Services Committee Chairman Carl Levin (left), Michigan Democrat, and Sen. Roger Wicker, Mississippi Republican, talk on Capitol Hill in Washington on April 17, 2013, before a hearing with Defense Secretary Chuck Hagel. A letter addressed to Wicker, believed to be poisoned with ricin or a similarly toxic substance, was intercepted at a mail facility outside the capital earlier in the week. Levin issued a statement saying an aide in his Saginaw, Mich., office had also received a suspicious-looking letter. (Associated Press)
**FILE** Senate Armed Services Committee Chairman Carl Levin, Michigan Democrat, speaks Feb. 26, 2013, with reporters on Capitol Hill in Washington. (Associated Press)
**FILE** Senate Armed Services Committee Chairman Carl Levin, Michigan Democrat, speaks Feb. 26, 2013, with reporters on Capitol Hill in Washington. (Associated Press)
**FILE** Senate Armed Services Committee Chairman Carl Levin, Michigan Democrat, speaks Feb. 26, 2013, with reporters on Capitol Hill in Washington. (Associated Press)
AP **FILE** President Barack Obama, flanked by Sen. Carl Levin, D-Mich., (left) and Sen. John McCain, R-Ariz., discusses government contracts reform at the Eisenhower Executive Office Building.
Sens. Jack Reed (left), Rhode Island Democrat; Carl Levin (third from left), Michigan Democrat and committee chairman; Jim Inhofe (third from right), Oklahoma Republican; and John McCain (right), Arizona Republican, listen as Secretary of Defense Leon E. Panetta (second from right) and Army Gen. Martin E. Dempsey (second from left), chairman of the Joint Chiefs of Staff, testify before the Senate Armed Services Committee on Capitol Hill in Washington on Thursday, Feb. 7, 2013, on the Defense Department's response to the attack on U.S. facilities in Benghazi, Libya. (Andrew Harnik/The Washington Times)
