Presidential Democracy
Explanation:
A presidential Democracy has the difference that the executive power lays in a single person, in this case, the president, it could be elected by direct vote or by the legislature as it does in the United States of America by the Electoral College, the main difference with a Parliamentary Democracy is that in the Parliamentary they don't have the executive power laying in a single person rather than a whole parliament and the head of state is someone else, often from the Parliament or a monarch.