The United States secretary of transportation is the head of the United States Department of Transportation. The secretary serves as the principal advisor...

secretary of transportation advises and assists the secretary of transportation in the supervision and direction of the Department of Transportation (DOT)...

It is headed by the secretary of transportation, who reports directly to the president of the United States and is a member of the president's Cabinet...

The United States secretary of energy is the head of the United States Department of Energy, a member of the Cabinet of the United States, and fifteenth...

the Navy, a military department within the United States Department of Defense. By law, the secretary of the Navy must be a civilian at least five years...

The United States secretary of homeland security is the head of the United States Department of Homeland Security, the federal department tasked with...

S. cabinet secretary. As the United States Secretary of Transportation for President Bush, Mineta was the only Democratic cabinet secretary in the Bush...

administrative arms of the president of the United States. There are currently 15 executive departments. Each department is headed by a secretary whose title...

The United States secretary of defense (SecDef) is the head of the United States Department of Defense, the executive department of the U.S. Armed Forces...

served as United States secretary of labor in the administration of George W. Bush from 2001 to 2009 and as United States Secretary of Transportation in the...