If you're talking about qualifications, prior experience is important. She's held 8 uneventful years in elected office, fewer than Obama overall at the time of his presidential campaign announcement, four controversial years as SoS and 20 years as a moderate-at-best political figurehead as First Lady. 20 years standing next to a State's and then the nation's Atlas is significant but not something quantifiable, especially in one of if not the safest period to be President in the last century. I'm not saying 12 years of experience is bad, obviously - especially not compared to Trump - but in her time in either field she accomplished essentially nothing other than the forwarding of her own political goals. Her first term in the Senate is essentially defined by the fact that she stayed silent publicly while building bridges in Congress for herself. To paraphrase you slightly, you claimed that she had one of the most impressive resumes in recent memory for a candidate. That's simply false. And then if we take her actual candidacy into account here, the holes start widening; she begins to fall back on her gender when pressed hard rather than give strict responses, and now she's turned her back on effectively 40% of the left voter base with continued attacks, astroturfing, and hostility. A qualified candidate has the maturity to not throw his/her hands in the air when a legitimate challenge is brought forth and the most important thing in an election is the perception of qualification, not the qualifications themselves. (If it was the latter it'd be a Sanders/Jeb! election.) When a candidate once inevitable hasn't mathematically eliminated a fringe candidate, that's cause for concern whether you personally agree or not.
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