Evaluate how the president uses informal powers.

What has the White House done to increase the president’s power over the years? How have these informal powers affected what the President has done (using recent presidents for examples would be useful)? How have these powers been used/abused by the Presidents in your opinion and why? Are there things our President would not have been able to accomplish if not for informal powers (again, recent examples would be useful)? Have we allowed the President to become too powerful? Please also feel free to evaluate and review the recent transition of power between President Obama and President Trump.