Which of these statements about presidents are either true or can be proven? Select all that apply.

-George Washington, the first president, was the world’s best diplomat.
-The Constitution does not rule out the importance of presidential precedents.
-George Washington did not have to follow any rules because he was the first president.
-If executive privilege is overused, the president becomes a ruler with absolute power.
-Friction between the executive and legislative branches sometimes leads to presidential precedents.