Election Projection 2004
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Last updated: 11/02/04
Final Projected Tally:
Electoral Votes:
Bush 289, Kerry 249
Popular Vote:
Bush 49.4%, Kerry 48.7%
Election 2004 Projections
Explanation of the Projection Formula
General Attributes of the Formula
I. Purpose
This formula's intent is to give a general sense of how the President would fare if the elections were held
today. As we move closer to election day, its usefulness as a prediction tool will increase.
II. Objectivity
In developing the formula, I made every effort to be objective, rather than biased toward Bush. Yes, I am
a huge supporter of the President, but this formula does not, in any way, falsely inflate Bush's standing.
III. Polls
I try to be thorough and objective in gathering polling data. I use the Polling Report and
RealClearPolitics for national polls and DC Political Report and RealClearPolitics for state polls.
However, there may be times when I overlook a poll. If this happens, I urge my readers to alert me to
such polls so that I can include them in the projection. Though some have implied it, I do not pick and
choose which polls will be used. Even if a poll shows Bush's numbers to be a lot lower than others, I
still use it. There are types of polls I don't use, such as John Zogby's Presidential job
performance polls. He asks participants to rate the President's job performance as excellent, good,
fair, or poor rather than asking if they approve or disapprove of the job he is doing.
The Formula's Three Adjustments
The projections can be broken down into three distinct, independent factors. I
list them here and explain them in excruciating detail below.
The Baseline Adjustment derived from the 2000 election result.
The National Adjustment resulting from a compilation of various national polls.
The State Adjustment calculated from the results of state polls.
Elections of 2000 and the Baseline Adjustment
The first task undertaken was to use the results of the elections of 2000 to arrive at a baseline adjustment
which would reflect a zero positive or negative skew of the polling data. In other words, what would be
Bush's votes total if his job approval, head-to-head and right track numbers were all exactly neutral (that is,
50%, in most cases)? In theory, he would get exactly the same votes as his challenger. Before I go
any further, I need to address the Nader candidacy of 2000. Exit polls indicate 20% of Nader voters would
have voted for Bush, 50% for Gore, and 30% would have stayed home. So, Nader's run, as we all know, hurt
Gore's chances. Because I'm loathe to model this projection in a way that would favor Bush, I decided to
allocate Nader votes to Bush and Kerry according to this exit polling data. In so doing, I discount Nader's
influence in this year's election while boosting Kerry's numbers just a little, assuming Nader does go the
distance. The result of all this number manipulation shows that, all polls being neutral, Bush and Kerry
would both get 49.085%. This is the starting point for adding in the current set of polls and reflects an
adjustment of approximately 1.215% from Bush's total vote percentage in 2000. Whew! Fuzzy-brained,
yet? I know I am!
The National Polling Data's Three Classes
There are three categories of statistics that make up the national polling segment of the formula I use
to project the outcome of the 2004 elections. One requirement that any poll must meet before being included
is that it must be timely. Any poll older than a month is not used.
1. Job Approval
Job Approval is the one statistic that most closely correlates to actual vote totals for an incumbent
president. As such, it is most heavily weighted in my formula. The 5 most recent polls from a
variety of polling organizations are used.
2. Head-to-Head Polling
Polling results from Bush vs. Kerry and Bush vs. Kerry vs. Nader surveys are the second set of data used.
I round up the 5 most recent polls pitting Bush against Kerry and the 5 most recent polls that include
Nader in the mix. In 2000, Nader only received about half as many votes as the polls predicted he would.
By using polls with him and without him, the formula attempts to imitate that outcome.
3. Right Track / Wrong Direction
For the third category, I gather the 3 most recent surveys that ask if participants think the country is on
the right track or headed in the wrong direction. History shows Presidents typically fare better than
this measure indicates. This means right track numbers in the high 40's have no negative or positive
effect on a President's election night performances. In the formula's calculations, a slight allowance
is made for this fact.
The State Polling Data
The big push from my readers to include state polls in my calculations is being rewarded. I've added
a weighted factor of state poll results to the projection formula. Here are the rules:
At most, three polls from a state are used.
In the interest of currency, if there is a poll or polls that were conducted less than 14 days prior to the
update, then only such polls will be used. For example, if a poll was conducted in Iowa a week before the
update, and another was conducted three weeks before, only the newest poll will be used.
However, if the latest polls were conducted more than 14 days prior, they will be used, up to the maximum
of three.
In no case will a poll over 30 days old be used.
State polling results will be weighted as follows:
For polls less than 14 days. One poll used will be weighted half the national polling adjustment
Two polls used will be equal to the national polling adjustment.
Three polls used will weighted more than the national polling adjustment by one half.
For polls more than 14 days. One poll used will be weighted one quarter of the national polling adjustment
Two polls used will be half the national polling adjustment.
Three polls used will be weighted 75% of the national polling adjustment.
So, here's the formula for the national polling adjustment