Article II · Section 3 of 4
The President's duties
Article II: The President
The one-line version
The President's duties: report to Congress, receive ambassadors, and make sure laws are carried out.
Section 3 in plain English
The President must report to Congress from time to time on the State of the Union. The President can also recommend laws.
On special occasions, the President can call Congress into session. If the two houses disagree on when to adjourn, the President can set the date.
The President receives ambassadors from other countries. The President must "take Care that the Laws be faithfully executed." The President commissions all federal officers.
Original text, 1788
He shall from time to time give to the Congress Information of the State of the Union, and recommend to their Consideration such Measures as he shall judge necessary and expedient; he may, on extraordinary Occasions, convene both Houses, or either of them, and in Case of Disagreement between them, with Respect to the Time of Adjournment, he may adjourn them to such Time as he shall think proper; he shall receive Ambassadors and other public Ministers; he shall take Care that the Laws be faithfully executed, and shall Commission all the Officers of the United States.