The writing of this thesis is intended to find out how Donald Trump's strategy in handling the case of Iran's nuclear program and what steps will be taken by the United States in order to pressure Iran through the Maximum Pressure Campaign. Trump decided to get out of the JCPOA (Join Comprehensive Plan of Action) agreement, a milestone between the two countries which had begun to be gone after Trump's decision to address Iran's nuclear was different. The United States since the leadership of Donald Trump began to realize the potential of Iran which can damage the international order because Iran continues to carry out destructive actions in the Middle East to remote parts of Europe. So as to maintain its existence in the Middle East, the United States also plays a role in these problems with a maximum pressure campaign.