But other political pundits speculate that the proposal might unite Democrats against Republican tax strategies.
Wellstone's tax proposal urges Congress to suspend future tax reductions for the wealthiest 1 percent of Americans. The proposal, which opposes President Bush's tax strategy, also intends to use the additional tax revenue for education.
Deemed a "rollback," Wellstone's tax proposal targets couples who file a joint income of more than $297,300.
Bush's plan would grant the same demographic tax breaks in 2004 and 2006 that would total about $121 billion dollars over the next 10 years.
Wellstone also hopes to prevent Bush's proposal to eliminate a minimum corporate tax. Elimination of the corporate tax would return about $13 billion dollars to corporations.
Some political experts say Wellstone's tax proposal comes at a dangerous time for him because he is in the midst of a fierce re-election battle with former St. Paul, Minn., Mayor Norm Coleman.
"He is pro-taxes; Minnesota is in a recession, as is the nation, and by taxing people it inhibits their spending and economic development," said Jake Grayssel, a researcher with the Minnesota Republican Party.
But Wellstone's tax proposal is characteristic of his stance on many fiscal issues, said UNC-Chapel Hill political science Professor Virginia Gray.
"This is an expected stance; both the liberals and conservatives know who he is and what he stands for," said Gray, who taught at the University of Minnesota for more than 27 years.