Pretty close. World was very different then. You didn't specify a time frame. Over the next 50-100 years I'd say the chance increases fast. I do think the weak candidates from both parties are a signal into the door opening for third parties to win.
If you look to our southern neighbors? Things need to get much worse. Someone needs to have real answers vs. just stopping the opposition. I've yet to see anyone on the horizon that could do this.