Barry its a peasant shirt not a present top. If this was a momentary “wardrobe malfunction” it would not have lasted from the base of the stairs until the top of the tower would it. Now put on your big boy logic and consider your answer, PLEase!
You make a good point in your post “it’s a stupid thing that really doesn’t matter” until you are the wife of the president (former president, thank the stars) of the United States and then you really need to live up to the position and believe me Michelle Obama has never nor is she even marginally equipped to do that. Her dressing is just a small point that doesn’t matter but her person falls short of acceptable.
The Obamas' daughters attended the University of Chicago Laboratory Schools , a private school.  As a member of the school's board, Michelle fought to maintain diversity in the school when other board members connected with the University of Chicago tried to reserve more slots for children of the university faculty. This resulted in a plan to expand the school.  Malia and Sasha attended Sidwell Friends School in Washington, after also considering Georgetown Day School .   Michelle stated in an interview on The Ellen DeGeneres Show that they do not intend to have any more children.  The Obamas have received advice from past first ladies Laura Bush , Rosalynn Carter and Hillary Clinton about raising children in the White House .  Marian Robinson , Michelle's mother, moved into the White House to assist with child care.