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President Barack Obama’s new top economic deputy is a former management consultant who worked for Gov. Mitt Romney’s Bain & Company investment firm.

The appointment of Jeff Zients as head of the National Economic Council is likely to annoy some union officials and some liberal groups who are focused on declining working-class wages and growing poverty, and it clashes with the populist anti-business invective used by Obama and his aides on the 2012 campaign trail to paint Romney as uncaring.

On the campaign, Obama repeatedly slammed Romney’s management-consulting business, and one of his TV-ads even suggested Romney was responsible for the death of a former employee’s spouse, who passed away after a battle with cancer.