] Welcome to the FAIRMODEL site
]
] This site brings the power of large scale
] macroeconometric analysis to anyone with access to the
] internet. It is a resource for business forecasters,
] government policy analysts, macroeconomic researchers,
] teachers, and students. At this site, which is completely
] free, you can:
...
]
] 5. Analyze a presidential vote equation, including
] examining Bush's chances in 2004.

There was a segment about the presidential vote equation on NPR. The main objection is that the model does not factor in unemployment. Employment is usually correlated with economic growth (which is a factor in the model), and the current jobless recovery may be sufficiently abnormal as to invalidate the model.