How serious is the possibility?

[bruce MN]

That the GOP caucus/primary/delegate/nomination process will unavoidably produce a candidate/ticket that respected Republicans of long standing...the John McCains, John Warners, Chick Hagels, Alan Simpsons, etc. ....can't endorse and support?

[BA Deere]

Let me rephrase your question "Do you think Trump, Rand Paul or Ted Cruz will be the GOP nominee?"  and no I don`t think they have a chance, it`ll be some RINO with a US Chamber of Commerce approval stamped on his head.  Whether or not people like me will vote for said RINO depends on how badly we hate the Democrat that`s running...and I can guarantee that as a certainty  

[r3020]

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@bruce MN wrote:
That the GOP caucus/primary/delegate/nomination process will unavoidably produce a candidate/ticket that respected Republicans of long standing...the John McCains, John Warners, Chick Hagels, Alan Simpsons, etc. ....can't endorse and support?

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Why does the candidate need the support of John McCain. He lost.