Papa Bush was groomed to be president. Prescot Bush was in Dallas during the JFK shooting, and he said his son would be president one day. He established a royal line in the game of thrones that ended with Jeb cause he's an unelectable idiot.
The three branches of government are the Kings (president), the CIA and the Federal Reserve. We elect the president, or really select them (and if someone tries to start a new royal line, well look at Orange Man). The CIA has been filled almost entirely with people descending from organized crime families (same mentality to carry out the same tasks), and the banking structure is a long running Dutch invention to control national valuation using the populous as collateral.