The document outlines the key powers granted to Congress in the US Constitution. It discusses Congress's enumerated powers to tax and spend, regulate trade between states and foreign nations, establish courts and rules of the military, and its implied powers through the Necessary and Proper Clause. The document also examines powers denied to Congress, such as ex post facto laws and interfering with intrastate trade, and powers denied to states like making treaties with other nations or interfering with interstate trade.