We have several alternative political parties. The Libertarian and Green parties are the most prominent, but we also have a Constitution Party, Justice Party and even a Socialist party.
Year after year polls have shown that at least 2/3 of people in the USA want more viable parties, but every two years, most of those same people refuse to vote for the alternatives they're given.
Of course when you have a two-party political duopoly, the two parties will do everything possible to prevent the rise of alternatives. Why would they ever reform the voting system so that we have IRV, "approval voting" or proportional representation? Ballot access is also made very difficult in most states and no other parties are allowed to participate in debates.
Voting for Democrats or Republicans is a wasted vote. Given that those parties have chosen to nominate the worst candidates imaginable in this election, I'm *hoping* that we see a strong showing for the alternatives. If the Libertarians can get 2-3% of the vote, I'll be happy. If the Greens could do the same(Come on Sanders supporters!), it would be fantastic.