Whenever a minor party makes a real go at the Presidency, partisan duopolists make up stories about how voting for the third candidate will make the wrong person win. Some of this is caused by a simple misunderstanding of how elections function; votes for Nader will not be added to votes for Bush, and votes for Buchanan will not be added to votes for Gore.
Notwithstanding this extreme level of disorientation, “vote for X is a vote for Y” arguments also have a slightly more sophisticated side. They take into account that state electoral votes can be one by simple pluralities; that if supporters of a certain movement are split between two candidates, that movement might fail to a numerically smaller opposing movement.
This, of course, creates the massive question of which candidates are clustered around the same movement. I mean, if the “spoiler” weren’t in the race, who would that person’s would-be supporters voting for? The answer is always presumed to be obvious, even though it isn’t. People say Perot voters would have gone to Bush in '92; I (and Electoral Studies, can’t remember which issue but it was 1993) say they would have been split about evenly. People are equally sure that Nader voters would go to Gore in '00; I say most of them would stay home or vote for some other minor party.
But aside from the main problem with these arguments, is the incredibly thin historical evidence. Oh, sure, people can always talk about “that one election that happened that one time when the one guy drew votes from that other guy and that bad guy won” but they can never remember the year. I’ll supply the years and refute the examples:
1860 Lincoln only won about 39% of the vote, so if you added all his opponents’ votes up the Frankencrat would have won. No. Lincoln won overall voting majorities in a group of states with an absolute majority of the electoral votes. A unified Democratic party would have run a better campaign, and Lincoln would have been defeated. Pure speculation. Furthermore, the third-place candidate in electoral terms was not a Democrat; Bell ran on the Constitutional Union Party ticket (I think he was a former Whig) so it’s not really fair to graft him on to the Frankencrat.
1912 Roosevelt drew enough votes from Taft to allow Wilson to win. This is the only close example of a spoiler election, but even it is really muddled. Roosevelt drew votes from Taft? Hardly. Taft came in third in the general election after getting trounced in the primaries. He carved out the GOP nomination because primaries didn’t select many delegates in those days (or for several decades thereafter). The very idea that Roosevelt drew votes from anyone falls afoul of another problem: eliminating the center candidate from a hypothetical example proves nothing. Roosevelt voters would not logically be any closer to Taft than they would to Wilson. Conservative Taft voters, on the other hand, would probably be a lot closer to Roosevelt, who at least was an ex-Republican Progressive, than they would to Wilson, who was a progressive Democrat. If Taft hadn’t been in the race, Roosevelt would have had smooth sailing; if Roosevelt hadn’t been in the race, there’s no telling where the Progressives would have gone. The Republicans spoiled a third party.
1968 Wallace drew enough votes from Humphrey that Nixon won. What, so the extreme right would have flocked to the moderate left to defeat the moderate right? I don’t think so. This argument is founded on notions of the Solid South - notions which survived mainly because “Solid” and “South” both begin with “S”. The Republicans had won the deep South in 1964; what reason is there to believe that a Minnesotan would have had an easier time in 1968 than a Texan did in 1964?
1980 Anderson drew enough votes from Carter that Reagan won. Like Lincoln, Reagan won popular majorities in states with a majority of the electoral vote. Even making the risky assumption that all Anderson voters would have moved to Carter, Reagan still wins
1992 Perot drew enough votes from Bush for Clinton to win. Any evidence that Bush was the second choice of most Perot voters? None that I’ve seen. Electoral Studies says the split was about 50-50. Are anti-establishment Perot voters really going to flock to President Bush in preference to Governor Clinton? In truth, had 34% of Perot voters moved to Clinton, and 66% of them moved to Bush, Clinton still would have won (provided it was a uniform swing).
1996 Perot drew enough votes from Bush for Dole to win. Clinton won about 49.2% of the popular vote this year. Perot supporters are closer to the Republicans this year, but it sure wouldn’t take many to push Clinton over the top. Nader pulled in 0.7% this year; Libertarians, Natural Lawers, and various Socialists got change. Would they all have switched to Dole if he were the only non-Clinton on the ballot?
I’m not saying a spoiler isn’t possible in the future, I’m just pointing out that it is not a simple matter. All of this would be academic if we had a modern election system (direct popular election with a majority rule and either a French-style delayed run-off or an Australian-style instant run-off). But we don’t, so we have to guess. Lots of people seem to think that all the Nader voters would line up happily to vote for someone they (claim they) consider a “corporate whore” (ooh … rhyming put-downs! This one has the Democrats sobbing piteously). They are wrong, but I can’t prove that. What I have shown is that there is no historical precedent for third party spoilers in Presidential elections.