It appears that Gary Johnson is on the ballot in all 50 states.
And when the major parties have seemingly settled on two unpopular/unsavory candidates, polls (same Wiki link) show that he is doing well for a third-party candidate. But the polls that matter are for the states (some at same Wiki link). If Johnson can keep just a few electoral votes from the Clinton-Trump combine, and neither one of them gets an Electoral College majority, the selection of the next president goes to the U.S. House of Representatives -- where each state has one vote.
The House might actually select an adult. I do not have high standards these days. Almost anyone but Clinton or Trump sounds pretty good.
This is not crazy. Clinton is being investigated by the FBI. Trump will not show his tax returns, torpedoes himself every chance he has, and has the national press corps on his case. What a time to be an investigative reporter. Two candidates with many skeletons in many closets.
A small number of voters in a small number of small states could then make a very big difference.