Barack Obama:

  

Is a sport played by two  temes of eleven players on a rectangular field

With goalposts at each end.

Flag of the United States:

The national flag of the United States of America, often referred to as the American flag, consists of thirteen equal horizontal stripes of red alternating with white, with a blue rectangle in the carton bearing fifty small, white, five-pointed stars arranged in nine offset horizontal rows of six stars alternating with rows of five stars. The 50 stars on the flag represent the 50 states of the United States of America and the 13 stripes represent the thirteen British colonies that declared independence from the kingdom of Great Britan and became the first states in the Union.

American football:

Is a sport played by two  temes of eleven players on a rectangular field

With goalposts at each end.

Fourth of July:

Independence Day is commonly associated with fireworks, parades, barbecues, carnivals, fairs, picnics, concerts,baseball games, family reunions, and political speeches and ceremonies.