The "Elastic Clause" of the Constitution grants Congress power to pass unspecified laws "necessary and proper" for the exercise of its expressed powersImplied powers have often been controversialOver time, Congress's powers have grown as more and more kinds of government activity have been
The U.S. entered World War I because Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war.
Han Artisans. Hope this helps!