What branch of government can bring charges against the president of the US?
The House and the cabinet with the 25th amendment.
In a presidential form of government which branch of government can declare an act of the president unconstitutional?
The legislative branch holds the power to remove the president from office on charges of illegal actions. This process is known as impeachment. For impeachment to occur, a majority vote of the house must be obtained in favor of the charges against the president. Following impeachment, which does not by itself remove the president, the president is tried by the senate. His ultimate removal requires a two thirds majority of the senators. Two presidents have…