 Several legal and constitutional experts were to subsequently testify that as Nixon did not inform the majority of Congress that he was bombing Cambodia, let alone ask for permission of Congress for the bombing, that this was illegal as the U.S. constitution gave Congress, not the president, the power to declare war.The bombing campaign against Cambodia which started in March 1969 and ended in August 1973, is considered by most legal experts to be an act of war which was waged without being sanctioned by Congress, making the bombing campaign to be a matter of questionable legality at best and downright illegal at worst.Under the constitution, Congress has the control of the budget and the president can only ask Congress to appropriate money.