But the 45th U.S. president could apparently use another grade school lesson or two on the American flag ... only red and white. The blue appears behind the flag's 50 stars (one for each state!), ...

June 14, 1777, the Continental Congress issued a resolution making the Stars and Stripes the nation's flag. Enjoy a little red, white, and blue from across the Smithsonian. Visit the O Say Can You See ...

The stars form an arch inside of a blue square at the top left corner of the flag, with the number "76" under it. What's ...