But barring a third-party deus ex machina, a Trump vs. Sanders contest would necessarily elect the “unelectable.” It would be as if Barry Goldwater faced George McGovern in the 1968 election. We have no idea what the result would be, except that it would be impossible.
Did somebody say third party?
If I can address you and Terri in same comment, my new dream is an 1824, four-way with a GOP nominee (Cruz, Rubio, jeb!), and a disgruntled Trump, and a Democrat (Clinton, Sanders), and Jim Webb. Trump could even be the GOP nominee in this scenario with a more establishment party figure running independent.
It might get settled in the House (like 1820) or somebody might pull of an electoral majority. But it would be a good time.
Mea maxima culpa! An early version of this comment said 1820, the uncontested "Era of Good Feelings" election, rather than the 1824, "Corrupt Bargain and vicious slander of Rachel Jackson" election. Three Sources regrets the error.