The president of the US is the single most recognizable figure in American politics. But what exactly are the powers of the president and how do they work in relation to the other two branches of American government? Article II of the Constitution states the powers of the president. It's important to keep in mind that the modern presidency is far more powerful and extensive than it was in the 18th & 19th centuries. The modern president has five primary powers: appointments, approving or vetoing laws, pardons, declaring war under certain conditions, treaties. Each of these powers are, however, checked by one or both of the other two branches of government.