Trump/Carson vs. Biden/Warren? Nate Silver's take

[Alabama Stakes]

clinton is not electable
romney is fevering , cause he knows he could easily be best of a poor lot
Biden knows he can beat Clinton. and Trump, and that Trump who can only beat Clinton and nobody else.
the rest have no chance. jeb Bush is a thick ****.
if Biden runs he even has a backup plan to guarantee victory." We shall pay off this deficit by legalizing marijuana and paying it off through a grass tax" he would win by a pole handily.