Deep State, what does it mean?

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In the United States, the "deep state" is a conspiracy theory which suggests that collusion and cronyism exist within the US political system and constitute a hidden government within the legitimately elected government. Author Mike Lofgren believes that there is "a hybrid association of elements of government and parts of top-level finance and industry that is effectively able to govern the United States without reference to the consent of the governed as expressed through the formal political process", or consider the deep state to encompass corruption prevalent among career politicians and civil servants.

The term was originally coined to refer to a relatively invisible state apparatus in Turkey "composed of high-level elements within the intelligence services, military, security, judiciary, and organized crime" and similar alleged networks in other countries including Egypt, Ukraine, Spain, Colombia, Italy, Israel, and many others.