You can lay all the hypotheticals you want about a third party candidate winning and getting back to the Constitution. I've got the real world example of the Perotistas giving Slick Willy the election not once but twice. I liked Perot up until he handed the election to the same guy that gave us the AWB and Justice Ruth Bader Ginsburg. I haven't liked Souter but he's far less dangerous than Ginsburg.

George H.W. Bush and George W. Bush both had their flaws but neither was as bad as the cretin currently occupying the Oval Office by a long shot.