The "Inherent Fragility" of the Bush Campaign

Jeb Bush's Many Problems (David Frum) from the Atlantic
"Bush’s ability to raise large amounts of money has distracted attention from the inherent fragility of his campaign. But there are many reasons to be skeptical of his ability to secure the Republican nomination, much less win the White House, and the early months of his undeclared campaign have done little to dispel those doubts. Here are six: ..."
While, as usual, Frum makes some valid points, I could come up with a similar list on the "inherent fragility" of the Hillary Clinton campaign.  Both of these candidates come with SO MUCH historical baggage, it's anyone's guess as to which will be the most burdened by it.