The Republican Governors Association is going all in for Wisconsin governor Scott Walker in the home stretch of the 2014 campaign. According to a GOP source familiar with RGA spending, the organization has reserved $4 to $5 million in TV ad time for the final two weeks before the election.

The air cover will come as welcome news to Republicans in Wisconsin who were alarmed by an October 16 Associated Press report that Walker and his allies were being outspent by Democratic challenger Mary Burke and her allies. “The Center for Public Integrity reported Thursday that Walker and his backers spent nearly $6.1 million on ads through Monday, while Burke and her supporters ran nearly $6.6 million,” the AP reported.