Wisconsin Governor Scott Walker

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Gov. Scott Walker has recently fallen in the polls among GOP presidential contenders, and his approval ratings have dropped as well including, in Wisconsin. He did not generate much attention during the first GOP debate, in August, so interests may be watching to observe what he does differently this time.

UW-Madison Political Science Professor Barry Burden says Walker's initial performance was perceived as weak in several ways.

Gov. Walker says he wants to do nationally, what he did in Wisconsin, when it comes to weakening public and private sector labor unions. He would go further by eliminating the National Labor Relations Board and striking recent orders from the Obama administration.

Last week, while on the campaign trail, Walker announced part of his plan.