Who is the head of state executive branch?

Answer

The power of the Executive Branch is vested in the President of the United States, who also acts as head of state and Commander-in-Chief of the armed forces. The President is responsible for implementing and enforcing the laws written by Congress and, to that end, appoints the heads of the federal agencies, including the Cabinet. The Vice President is also part of the Executive Branch, ready to assume the Presidency should the need arise.

Answer

In state government, the Governor is head of the Executive branch; the Lt. Governor is second in command, analogous to the President and Vice-President in the federal government.