Salem, New Hampshire (CNN) - In a new TV ad released in South Carolina, Mitt Romney took aim at a controversial decision by President Barack Obama to appoint new members to the national labor board.
The 30-second spot, titled "Free Enterprise," criticized three recess appointments Obama made Wednesday to the National Labor Relations Board - a frequent target for congressional Republicans whose actions they were hoping to stymie.
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Romney said the board was "stacked with union stooges" and accused the president of making his decisions based on political calculations.
"You're seeing a president adopt policies which affect our economy based not upon what's right for the American worker but instead what's right for their politics," Romney said in the spot.
Over a congressional break, Obama appointed two Democrats and a Republican to the board - actions Republicans previously blocked.
The Romney ad will hit the airwaves on Thursday in South Carolina, a state recently embroiled in a lawsuit over union rights.
The NLRB eventually dropped its suit against Boeing in South Carolina. The labor board had attempted to block Boeing from moving part of its operation to South Carolina, a non-union so-called right-to-work state.
In the ad Romney charged Obama "says to a free enterprise like Boeing, 'You can't build a factory in South Carolina because South Carolina is a Right to Work state.'"
Romney continued: "That is simply un-American. It is political payback of the worst kind."