Article II, Section 3

The President must periodically deliver a speech on the current state of the Union in which he makes recommendations to Congress as to actions he considers necessary for the nation. The President possesses the power to call special sessions of Congress or either house after it has adjourned. If the two houses cannot agree on an adjournment date, it is the President who sets one. The President will receive ambassadors and other foreign diplomats. He will make sure that the laws of the Federal Government are properly executed. He will make sure that federal officers hold their posts and perform their duties.