“Would a third party stand a chance given Trump and Clinton’s negative favorability?” — commenter Zach Dasher
Answer
In the abstract, it’s a very good opportunity for a third party candidate to run. The challenges are still manifest, however. For one thing, it’s a little late at this point to be assured of ballot access in all 50 states.
But more importantly, it’s hard for a third-party candidate to build a winning coalition. You might think, “well, there are plenty of independents,” but independents don’t necessarily agree on all that much. Some of them are more Trumpian, some are more Bloombergian, and some are “closet partisans” who are independent in name only. So most of the time, a third-party candidate is going to take votes unevenly from the two major parties. And whichever major party she takes fewer votes from will tend to win with a fairly clear plurality.