The good news for Hillary is that the best way she can overcome these concerns is to eschew the inevitability strategy that doomed her in 2008, and instead, campaign aggressively and vigorously.

In fact, overcoming this challenge could easily be the comeback story of her campaign — reminiscent of Reagan’s response when Henry Trewhitt raised the age issue during a 1984 presidential debate.

And make no mistake, while the existence of rumors is real, it’s entirely possible this is merely the result of some perverse wishful thinking on the part of her enemies. If that’s the case, there is a real danger that Republicans will talk themselves into believing this is true, when it’s not.