The president is often referred to as the "chief of state," so right now, that would be President Barack Obama. But if you are referring to the "Secretary of State," that would be Hillary Clinton.
President Obama.
There are many; however most are variations on "Commander in Chief".
Chief Justice William H. Taft, former President of the United States. When you hear an era of the Supreme Court referred to by a last name, the name is always that of the Chief Justice.
The President of the United States is the commander in chief of the United States.
Taft is the last name of the William who was Chief Justice, being William Howard Taft, former president of the United States.
The Chief Justice of the United States heads The United States Supreme Court as the top presiding Judge. The Chief Justice's title is The Chief Justice of the United States.
The President is the Commander-In-Chief of the Armed Forces, not of the United States.
There are currently 29 Indian Chief Ministers of states in India. The longest tenured of these is Pawan kumar Chamling of Sikkim. He has been in office since December 12th, 1994.
Chief Technology Officer of the United States was created in 2009.
The President of the United States is the Commander in Chief of the US Military. The President of the United States is the Commander in Chief of the United States Armed Forces. The president of the U.S. is automatically the commander-in-chief of all federal military forces.
The United States has not yet had a female Chief Justice. All 17 Chief Justices have been white males.
John Marshall, the fourth Chief Justice of the United States, who served from 1801-1835, and was instrumental in establishing the Supreme Court as a branch of government equal in power and importance to the Legislative and Executive branches.