In one way I can understand the perhaps reasonable answer of frustration when reading the article.
But then again....
Being married to a President also has some downward points. The hired staff of over 20 (22 people in the article) is in my opinion plain normal and a real must.
While she may not have any official power, she has unofficial and psychological power to the extend she can ruin her husbands entire credibility and career if she even dares to make a small misstep.
These people, this staff, is nothing more then a think-tank to evade such scenarios. They are implemented to make the family behind a president more attractive so they wouldn't form a hazard for eventual problems which can cause a major disruptance.
I think that a staff of 22 people for a first lady is quite normal. It might be a little too much (no idea what the normal staff-amount for a first-lady, let alone for a president, consists). But this number seems fair enough to me.
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You either die a hero or you live long enough to see yourself become the villain.