Why did Hillary Clinton lie about her health?

"It was only a few hours later when her campaign finally announced that she has pneumonia and is recovering.

The most charitable reading of this timeline is that her campaign — presumably with the blessing and perhaps insistence of the candidate — fully intended to keep her illness a secret from the public. Let's be clear about what this means: Her campaign intended to lie. Even though doing so would require her to keep up a public schedule that might well make her condition worse and require ever-more elaborate forms of concealment. Because, of course, to curtail her schedule would raise questions that might reveal the truth.

Political trust is a fragile thing. Once it's gone, it's exceedingly difficult to get back — and without it, there's no basis on which to dismiss conspiracy theories that even normally level-headed observers will begin, for perfectly understandable reasons, to entertain.

Like so many of the scandals and pseudo-scandals that have dogged Hillary Clinton and her husband through the years, this one needs to be recognized as entirely self-inflicted. The campaign now has to live with the consequences of having chosen to lie to get out of a problem."

[The Week]